520155552 has 96 divisors (see below), whose sum is σ = 1642636800. Its totient is φ = 140790528.

The previous prime is 520155547. The next prime is 520155599. The reversal of 520155552 is 255551025.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7602 + ... + 33137.

It is an arithmetic number, because the mean of its divisors is an integer number (17110800).

Almost surely, 2^520155552 is an apocalyptic number.

It is an amenable number.

520155552 is an abundant number, since it is smaller than the sum of its proper divisors (1122481248).

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

520155552 is a wasteful number, since it uses less digits than its factorization.

520155552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40778 (or 40770 counting only the distinct ones).

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 520155552 is about 22806.9189501783. The cubic root of 520155552 is about 804.2253273050.

The spelling of 520155552 in words is "five hundred twenty million, one hundred fifty-five thousand, five hundred fifty-two".