525721460 has 24 divisors (see below), whose sum is σ = 1204380576. Its totient is φ = 191171360.

The previous prime is 525721457. The next prime is 525721499. The reversal of 525721460 is 64127525.

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, 1194602 + ... + 1195041.

It is an arithmetic number, because the mean of its divisors is an integer number (50182524).

Almost surely, 2^525721460 is an apocalyptic number.

It is an amenable number.

525721460 is an abundant number, since it is smaller than the sum of its proper divisors (678659116).

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

525721460 is a wasteful number, since it uses less digits than its factorization.

525721460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2389663 (or 2389661 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 525721460 is about 22928.6166176680. The cubic root of 525721460 is about 807.0836853720.

Adding to 525721460 its reverse (64127525), we get a palindrome (589848985).

The spelling of 525721460 in words is "five hundred twenty-five million, seven hundred twenty-one thousand, four hundred sixty".