70137525 has 12 divisors (see below), whose sum is σ = 115960832. Its totient is φ = 37406640.

The previous prime is 70137521. The next prime is 70137539. The reversal of 70137525 is 52573107.

It is not a de Polignac number, because 70137525 - 2² = 70137521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70137492 and 70137501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70137521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 467509 + ... + 467658.

Almost surely, 2^70137525 is an apocalyptic number.

70137525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

70137525 is a deficient number, since it is larger than the sum of its proper divisors (45823307).

70137525 is a wasteful number, since it uses less digits than its factorization.

70137525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935180 (or 935175 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 70137525 is about 8374.8149233282. The cubic root of 70137525 is about 412.3982485486.

It can be divided in two parts, 701 and 37525, that added together give a triangular number (38226 = T₂₇₆).

The spelling of 70137525 in words is "seventy million, one hundred thirty-seven thousand, five hundred twenty-five".