725163284 has 24 divisors (see below), whose sum is σ = 1315507200. Its totient is φ = 349403040.

The previous prime is 725163247. The next prime is 725163293. The reversal of 725163284 is 482361527.

It is a happy number.

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, 17402 + ... + 41870.

It is an arithmetic number, because the mean of its divisors is an integer number (54812800).

Almost surely, 2^725163284 is an apocalyptic number.

It is an amenable number.

725163284 is a deficient number, since it is larger than the sum of its proper divisors (590343916).

725163284 is a wasteful number, since it uses less digits than its factorization.

725163284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24743 (or 24741 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 725163284 is about 26928.8559727293. The cubic root of 725163284 is about 898.4183264983.

The spelling of 725163284 in words is "seven hundred twenty-five million, one hundred sixty-three thousand, two hundred eighty-four".