520171252 has 12 divisors (see below), whose sum is σ = 911052576. Its totient is φ = 259870520.

The previous prime is 520171247. The next prime is 520171273. The reversal of 520171252 is 252171025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48274 + ... + 58057.

It is an arithmetic number, because the mean of its divisors is an integer number (75921048).

Almost surely, 2^520171252 is an apocalyptic number.

It is an amenable number.

520171252 is a deficient number, since it is larger than the sum of its proper divisors (390881324).

520171252 is a wasteful number, since it uses less digits than its factorization.

520171252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107558 (or 107556 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 520171252 is about 22807.2631413767. The cubic root of 520171252 is about 804.2334186093.

The spelling of 520171252 in words is "five hundred twenty million, one hundred seventy-one thousand, two hundred fifty-two".