525440868 has 12 divisors (see below), whose sum is σ = 1226028720. Its totient is φ = 175146952.

The previous prime is 525440857. The next prime is 525440893. The reversal of 525440868 is 868044525.

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

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, 21893358 + ... + 21893381.

It is an arithmetic number, because the mean of its divisors is an integer number (102169060).

Almost surely, 2^525440868 is an apocalyptic number.

It is an amenable number.

525440868 is an abundant number, since it is smaller than the sum of its proper divisors (700587852).

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

525440868 is a wasteful number, since it uses less digits than its factorization.

525440868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43786746 (or 43786744 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 42.

The square root of 525440868 is about 22922.4969844038. The cubic root of 525440868 is about 806.9400722333.

The spelling of 525440868 in words is "five hundred twenty-five million, four hundred forty thousand, eight hundred sixty-eight".