520573672 has 8 divisors (see below), whose sum is σ = 976075650. Its totient is φ = 260286832.

The previous prime is 520573649. The next prime is 520573681. The reversal of 520573672 is 276375025.

It can be written as a sum of positive squares in only one way, i.e., 290566116 + 230007556 = 17046^2 + 15166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32535847 + ... + 32535862.

Almost surely, 2^520573672 is an apocalyptic number.

It is an amenable number.

520573672 is a deficient number, since it is larger than the sum of its proper divisors (455501978).

520573672 is a wasteful number, since it uses less digits than its factorization.

520573672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65071715 (or 65071711 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 520573672 is about 22816.0836253727. The cubic root of 520573672 is about 804.4407581395.

The spelling of 520573672 in words is "five hundred twenty million, five hundred seventy-three thousand, six hundred seventy-two".