725961888 has 72 divisors (see below), whose sum is σ = 2067074100. Its totient is φ = 241680384.

The previous prime is 725961883. The next prime is 725961911. The reversal of 725961888 is 888169527.

It can be written as a sum of positive squares in 2 ways, for example, as 723179664 + 2782224 = 26892^2 + 1668^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (725961883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404898 + ... + 406686.

Almost surely, 2^725961888 is an apocalyptic number.

It is an amenable number.

725961888 is an abundant number, since it is smaller than the sum of its proper divisors (1341112212).

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

725961888 is a wasteful number, since it uses less digits than its factorization.

725961888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214 (or 3203 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 54.

The square root of 725961888 is about 26943.6799268400. The cubic root of 725961888 is about 898.7480073050.

The spelling of 725961888 in words is "seven hundred twenty-five million, nine hundred sixty-one thousand, eight hundred eighty-eight".