525650440 has 48 divisors (see below), whose sum is σ = 1375814700. Its totient is φ = 180222336.

The previous prime is 525650431. The next prime is 525650459. The reversal of 525650440 is 44056525.

It can be written as a sum of positive squares in 2 ways, for example, as 489913956 + 35736484 = 22134^2 + 5978^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132135 + ... + 136054.

Almost surely, 2^525650440 is an apocalyptic number.

It is an amenable number.

525650440 is an abundant number, since it is smaller than the sum of its proper divisors (850164260).

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

525650440 is a wasteful number, since it uses less digits than its factorization.

525650440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268214 (or 268203 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 525650440 is about 22927.0678456710. The cubic root of 525650440 is about 807.0473406097.

It can be divided in two parts, 5256 and 50440, that added together give a square (55696 = 236²).

The spelling of 525650440 in words is "five hundred twenty-five million, six hundred fifty thousand, four hundred forty".