725625344 has 80 divisors (see below), whose sum is σ = 1549132992. Its totient is φ = 338731008.

The previous prime is 725625337. The next prime is 725625353. The reversal of 725625344 is 443526527.

It is a junction number, because it is equal to n+sod(n) for n = 725625298 and 725625307.

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, 505652 + ... + 507084.

Almost surely, 2^725625344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725625344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774566496).

725625344 is an abundant number, since it is smaller than the sum of its proper divisors (823507648).

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

725625344 is a wasteful number, since it uses less digits than its factorization.

725625344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1501 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 725625344 is about 26937.4338792692. The cubic root of 725625344 is about 898.6091042366.

The spelling of 725625344 in words is "seven hundred twenty-five million, six hundred twenty-five thousand, three hundred forty-four".