520647552 has 96 divisors (see below), whose sum is σ = 1504453080. Its totient is φ = 172827648.

The previous prime is 520647541. The next prime is 520647577. The reversal of 520647552 is 255746025.

520647552 is a `hidden beast` number, since 5 + 2 + 0 + 647 + 5 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325218 + ... + 326814.

Almost surely, 2^520647552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520647552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752226540).

520647552 is an abundant number, since it is smaller than the sum of its proper divisors (983805528).

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

520647552 is a wasteful number, since it uses less digits than its factorization.

520647552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900 (or 1885 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 520647552 is about 22817.7026012699. The cubic root of 520647552 is about 804.4788118452.

The spelling of 520647552 in words is "five hundred twenty million, six hundred forty-seven thousand, five hundred fifty-two".