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22750000025 = 521019009901
BaseRepresentation
bin10101001100000000…
…010111001110011001
32011201111010202002112
4111030000113032121
5333043000000100
614241243242105
71433523544454
oct251400271631
964644122075
1022750000025
119714866815
1244aab19335
1321b734979c
14115b61249b
158d23cab35
hex54c017399

22750000025 has 12 divisors (see below), whose sum is σ = 28489310124. Its totient is φ = 18019800000.

The previous prime is 22750000019. The next prime is 22750000033. The reversal of 22750000025 is 52000005722.

It can be written as a sum of positive squares in 6 ways, for example, as 2215396624 + 20534603401 = 47068^2 + 143299^2 .

It is not a de Polignac number, because 22750000025 - 212 = 22749995929 is a prime.

It is a super-2 number, since 2×227500000252 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4502426 + ... + 4507475.

It is an arithmetic number, because the mean of its divisors is an integer number (2374109177).

Almost surely, 222750000025 is an apocalyptic number.

22750000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22750000025 is a deficient number, since it is larger than the sum of its proper divisors (5739310099).

22750000025 is a wasteful number, since it uses less digits than its factorization.

22750000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010012 (or 9010007 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

Adding to 22750000025 its reverse (52000005722), we get a palindrome (74750005747).

The spelling of 22750000025 in words is "twenty-two billion, seven hundred fifty million, twenty-five", and thus it is an aban number.

Divisors: 1 5 25 101 505 2525 9009901 45049505 225247525 910000001 4550000005 22750000025