725520234 has 16 divisors (see below), whose sum is σ = 1514129472. Its totient is φ = 231325248.

The previous prime is 725520217. The next prime is 725520251. The reversal of 725520234 is 432025527.

It is an interprime number because it is at equal distance from previous prime (725520217) and next prime (725520251).

It is a super-3 number, since 3×725520234³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2628559 + ... + 2628834.

It is an arithmetic number, because the mean of its divisors is an integer number (94633092).

Almost surely, 2^725520234 is an apocalyptic number.

725520234 is an abundant number, since it is smaller than the sum of its proper divisors (788609238).

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

725520234 is a wasteful number, since it uses less digits than its factorization.

725520234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5257421.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 725520234 is about 26935.4828061425. The cubic root of 725520234 is about 898.5657129904.

The spelling of 725520234 in words is "seven hundred twenty-five million, five hundred twenty thousand, two hundred thirty-four".