525320520 has 32 divisors (see below), whose sum is σ = 1575961920. Its totient is φ = 140085440.

The previous prime is 525320489. The next prime is 525320539. The reversal of 525320520 is 25023525.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2188716 + ... + 2188955.

It is an arithmetic number, because the mean of its divisors is an integer number (49248810).

Almost surely, 2^525320520 is an apocalyptic number.

It is an amenable number.

525320520 is an abundant number, since it is smaller than the sum of its proper divisors (1050641400).

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

525320520 is a wasteful number, since it uses less digits than its factorization.

525320520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377685 (or 4377681 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 525320520 is about 22919.8717273897. The cubic root of 525320520 is about 806.8784598204.

The spelling of 525320520 in words is "five hundred twenty-five million, three hundred twenty thousand, five hundred twenty".