725163540 has 24 divisors (see below), whose sum is σ = 2030458080. Its totient is φ = 193376928.

The previous prime is 725163539. The next prime is 725163587. The reversal of 725163540 is 45361527.

It is a congruent number.

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, 6042970 + ... + 6043089.

It is an arithmetic number, because the mean of its divisors is an integer number (84602420).

Almost surely, 2^725163540 is an apocalyptic number.

It is an amenable number.

725163540 is an abundant number, since it is smaller than the sum of its proper divisors (1305294540).

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

725163540 is a wasteful number, since it uses less digits than its factorization.

725163540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12086071 (or 12086069 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 725163540 is about 26928.8607259943. The cubic root of 725163540 is about 898.4184322194.

The spelling of 725163540 in words is "seven hundred twenty-five million, one hundred sixty-three thousand, five hundred forty".