725690625 has 96 divisors (see below), whose sum is σ = 1367912448. Its totient is φ = 339000000.

The previous prime is 725690597. The next prime is 725690627. The reversal of 725690625 is 526096527.

It is not a de Polignac number, because 725690625 - 2⁶ = 725690561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725690627) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3196762 + ... + 3196988.

It is an arithmetic number, because the mean of its divisors is an integer number (14249088).

Almost surely, 2^725690625 is an apocalyptic number.

725690625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

725690625 is a deficient number, since it is larger than the sum of its proper divisors (642221823).

725690625 is a wasteful number, since it uses less digits than its factorization.

725690625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 725690625 is about 26938.6455672886. The cubic root of 725690625 is about 898.6360512658.

The spelling of 725690625 in words is "seven hundred twenty-five million, six hundred ninety thousand, six hundred twenty-five".