725287264 has 48 divisors (see below), whose sum is σ = 1549603440. Its totient is φ = 332167680.

The previous prime is 725287243. The next prime is 725287279. The reversal of 725287264 is 462782527.

It is a self number, because there is not a number n which added to its sum of digits gives 725287264.

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, 47842 + ... + 61150.

It is an arithmetic number, because the mean of its divisors is an integer number (32283405).

Almost surely, 2^725287264 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 725287264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (774801720).

725287264 is an abundant number, since it is smaller than the sum of its proper divisors (824316176).

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

725287264 is a wasteful number, since it uses less digits than its factorization.

725287264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13463 (or 13455 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 725287264 is about 26931.1578659366. The cubic root of 725287264 is about 898.4695239594.

The spelling of 725287264 in words is "seven hundred twenty-five million, two hundred eighty-seven thousand, two hundred sixty-four".