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2500025225 = 521931412101
BaseRepresentation
bin1001010100000011…
…0101101110001001
320110020020102212212
42111000311232021
520110001301400
61052024114505
7115644602165
oct22500655611
96406212785
102500025225
111073220a55
12599305a35
1330ac3aa89
1419a059ca5
15e9733335
hex95035b89

2500025225 has 72 divisors (see below), whose sum is σ = 3486800640. Its totient is φ = 1771200000.

The previous prime is 2500025207. The next prime is 2500025251. The reversal of 2500025225 is 5225200052.

It is a happy number.

It is not a de Polignac number, because 2500025225 - 212 = 2500021129 is a prime.

It is a super-2 number, since 2×25000252252 = 12500252251272601250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2500025225.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 24752675 + ... + 24752775.

Almost surely, 22500025225 is an apocalyptic number.

2500025225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2500025225 is a deficient number, since it is larger than the sum of its proper divisors (986775415).

2500025225 is a wasteful number, since it uses less digits than its factorization.

2500025225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 2500025225 is about 50000.2522493637. The cubic root of 2500025225 is about 1357.2133730277.

Adding to 2500025225 its reverse (5225200052), we get a palindrome (7725225277).

The spelling of 2500025225 in words is "two billion, five hundred million, twenty-five thousand, two hundred twenty-five".

Divisors: 1 5 19 25 31 41 95 101 155 205 475 505 589 775 779 1025 1271 1681 1919 2525 2945 3131 3895 4141 6355 8405 9595 14725 15655 19475 20705 24149 31775 31939 42025 47975 52111 59489 78275 78679 103525 120745 128371 159695 169781 260555 297445 393395 603725 641855 798475 848905 990109 1302775 1487225 1966975 2439049 3209275 3225839 4244525 4950545 5263211 12195245 16129195 24752725 26316055 60976225 80645975 100001009 131580275 500005045 2500025225