520726172 has 6 divisors (see below), whose sum is σ = 911270808. Its totient is φ = 260363084.

The previous prime is 520726163. The next prime is 520726183. The reversal of 520726172 is 271627025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65090768 + ... + 65090775.

It is an arithmetic number, because the mean of its divisors is an integer number (151878468).

Almost surely, 2^520726172 is an apocalyptic number.

It is an amenable number.

520726172 is a deficient number, since it is larger than the sum of its proper divisors (390544636).

520726172 is a wasteful number, since it uses less digits than its factorization.

520726172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130181547 (or 130181545 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 520726172 is about 22819.4253214230. The cubic root of 520726172 is about 804.5193030506.

The spelling of 520726172 in words is "five hundred twenty million, seven hundred twenty-six thousand, one hundred seventy-two".