725652431 has 4 divisors (see below), whose sum is σ = 829317072. Its totient is φ = 621987792.

The previous prime is 725652397. The next prime is 725652437. The reversal of 725652431 is 134256527.

725652431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 725652431 - 2¹⁴ = 725636047 is a prime.

It is a super-2 number, since 2×725652431² = 1053142901232419522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 725652391 and 725652400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725652437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51832310 + ... + 51832323.

It is an arithmetic number, because the mean of its divisors is an integer number (207329268).

Almost surely, 2^725652431 is an apocalyptic number.

725652431 is a deficient number, since it is larger than the sum of its proper divisors (103664641).

725652431 is a wasteful number, since it uses less digits than its factorization.

725652431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103664640.

The product of its digits is 50400, while the sum is 35.

The square root of 725652431 is about 26937.9366507533. The cubic root of 725652431 is about 898.6202855449.

The spelling of 725652431 in words is "seven hundred twenty-five million, six hundred fifty-two thousand, four hundred thirty-one".