725204136 has 16 divisors (see below), whose sum is σ = 1813010400. Its totient is φ = 241734704.

The previous prime is 725204113. The next prime is 725204149. The reversal of 725204136 is 631402527.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15108396 + ... + 15108443.

It is an arithmetic number, because the mean of its divisors is an integer number (113313150).

Almost surely, 2^725204136 is an apocalyptic number.

It is an amenable number.

725204136 is an abundant number, since it is smaller than the sum of its proper divisors (1087806264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725204136 is a wasteful number, since it uses less digits than its factorization.

725204136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30216848 (or 30216844 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 725204136 is about 26929.6144792309. The cubic root of 725204136 is about 898.4351969500.

The spelling of 725204136 in words is "seven hundred twenty-five million, two hundred four thousand, one hundred thirty-six".