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25070125 = 531311531
BaseRepresentation
bin101111110100…
…0101000101101
31202011200202011
41133220220231
522404221000
62253201221
7423043513
oct137505055
952150664
1025070125
1113173613
128490211
13526a0c2
1434884b3
1523032ba
hex17e8a2d

25070125 has 16 divisors (see below), whose sum is σ = 31546944. Its totient is φ = 19890000.

The previous prime is 25070117. The next prime is 25070167. The reversal of 25070125 is 52107052.

It is not a de Polignac number, because 25070125 - 23 = 25070117 is a prime.

It is a super-2 number, since 2×250701252 = 1257022335031250, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25070096 and 25070105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15610 + ... + 17140.

It is an arithmetic number, because the mean of its divisors is an integer number (1971684).

Almost surely, 225070125 is an apocalyptic number.

25070125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25070125 is a deficient number, since it is larger than the sum of its proper divisors (6476819).

25070125 is a wasteful number, since it uses less digits than its factorization.

25070125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 25070125 is about 5007.0075893691. The cubic root of 25070125 is about 292.6749142525.

Adding to 25070125 its reverse (52107052), we get a palindrome (77177177).

The spelling of 25070125 in words is "twenty-five million, seventy thousand, one hundred twenty-five".

Divisors: 1 5 25 125 131 655 1531 3275 7655 16375 38275 191375 200561 1002805 5014025 25070125