725502631 has 16 divisors (see below), whose sum is σ = 874425600. Its totient is φ = 588022848.

The previous prime is 725502629. The next prime is 725502647. The reversal of 725502631 is 136205527.

It is not a de Polignac number, because 725502631 - 2¹ = 725502629 is a prime.

It is a super-2 number, since 2×725502631² = 1052708135175844322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725502593 and 725502602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725502671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70035 + ... + 79723.

It is an arithmetic number, because the mean of its divisors is an integer number (54651600).

Almost surely, 2^725502631 is an apocalyptic number.

725502631 is a deficient number, since it is larger than the sum of its proper divisors (148922969).

725502631 is a wasteful number, since it uses less digits than its factorization.

725502631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10278.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 725502631 is about 26935.1560418721. The cubic root of 725502631 is about 898.5584457545.

The spelling of 725502631 in words is "seven hundred twenty-five million, five hundred two thousand, six hundred thirty-one".