538856520 has 32 divisors (see below), whose sum is σ = 1616569920. Its totient is φ = 143695040.

The previous prime is 538856503. The next prime is 538856543. The reversal of 538856520 is 25658835.

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, 2245116 + ... + 2245355.

It is an arithmetic number, because the mean of its divisors is an integer number (50517810).

Almost surely, 2^538856520 is an apocalyptic number.

It is an amenable number.

538856520 is an abundant number, since it is smaller than the sum of its proper divisors (1077713400).

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

538856520 is a wasteful number, since it uses less digits than its factorization.

538856520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490485 (or 4490481 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The square root of 538856520 is about 23213.2832662680. The cubic root of 538856520 is about 813.7500857714.

The spelling of 538856520 in words is "five hundred thirty-eight million, eight hundred fifty-six thousand, five hundred twenty".