725372635 has 16 divisors (see below), whose sum is σ = 941865120. Its totient is φ = 533111040.

The previous prime is 725372629. The next prime is 725372639. The reversal of 725372635 is 536273527.

It is a de Polignac number, because none of the positive numbers 2^k-725372635 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725372639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12730 + ... + 40159.

It is an arithmetic number, because the mean of its divisors is an integer number (58866570).

Almost surely, 2^725372635 is an apocalyptic number.

725372635 is a deficient number, since it is larger than the sum of its proper divisors (216492485).

725372635 is a wasteful number, since it uses less digits than its factorization.

725372635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53118.

The product of its digits is 264600, while the sum is 40.

The square root of 725372635 is about 26932.7428049948. The cubic root of 725372635 is about 898.5047744669.

The spelling of 725372635 in words is "seven hundred twenty-five million, three hundred seventy-two thousand, six hundred thirty-five".