520921552 has 20 divisors (see below), whose sum is σ = 1009761760. Its totient is φ = 260337888.

The previous prime is 520921547. The next prime is 520921553. The reversal of 520921552 is 255129025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520921553) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34213 + ... + 47035.

It is an arithmetic number, because the mean of its divisors is an integer number (50488088).

Almost surely, 2^520921552 is an apocalyptic number.

It is an amenable number.

520921552 is a deficient number, since it is larger than the sum of its proper divisors (488840208).

520921552 is a wasteful number, since it uses less digits than its factorization.

520921552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15370 (or 15364 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 520921552 is about 22823.7059216947. The cubic root of 520921552 is about 804.6199108395.

The spelling of 520921552 in words is "five hundred twenty million, nine hundred twenty-one thousand, five hundred fifty-two".