3507638725 has 12 divisors (see below), whose sum is σ = 4357107040. Its totient is φ = 2801185200.

The previous prime is 3507638707. The next prime is 3507638749. The reversal of 3507638725 is 5278367053.

It is a de Polignac number, because none of the positive numbers 2^k-3507638725 is a prime.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108585 + ... + 137134.

Almost surely, 2^3507638725 is an apocalyptic number.

It is an amenable number.

3507638725 is a deficient number, since it is larger than the sum of its proper divisors (849468315).

3507638725 is a wasteful number, since it uses less digits than its factorization.

3507638725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246300 (or 246295 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 46.

The square root of 3507638725 is about 59225.3216538332. The cubic root of 3507638725 is about 1519.3982389727.

The spelling of 3507638725 in words is "three billion, five hundred seven million, six hundred thirty-eight thousand, seven hundred twenty-five".