725111988 has 12 divisors (see below), whose sum is σ = 1691928000. Its totient is φ = 241703992.

The previous prime is 725111963. The next prime is 725112043. The reversal of 725111988 is 889111527.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30212988 + ... + 30213011.

It is an arithmetic number, because the mean of its divisors is an integer number (140994000).

Almost surely, 2^725111988 is an apocalyptic number.

It is an amenable number.

725111988 is an abundant number, since it is smaller than the sum of its proper divisors (966816012).

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

725111988 is a wasteful number, since it uses less digits than its factorization.

725111988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60426006 (or 60426004 counting only the distinct ones).

The product of its digits is 40320, while the sum is 42.

The square root of 725111988 is about 26927.9035203263. The cubic root of 725111988 is about 898.3971421416.

The spelling of 725111988 in words is "seven hundred twenty-five million, one hundred eleven thousand, nine hundred eighty-eight".