520078672 has 10 divisors (see below), whose sum is σ = 1007652458. Its totient is φ = 260039328.

The previous prime is 520078651. The next prime is 520078681. The reversal of 520078672 is 276870025.

It can be written as a sum of positive squares in only one way, i.e., 436977216 + 83101456 = 20904^2 + 9116^2 .

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, 16252443 + ... + 16252474.

Almost surely, 2^520078672 is an apocalyptic number.

It is an amenable number.

520078672 is a deficient number, since it is larger than the sum of its proper divisors (487573786).

520078672 is a wasteful number, since it uses less digits than its factorization.

520078672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32504925 (or 32504919 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 520078672 is about 22805.2334344553. The cubic root of 520078672 is about 804.1857033314.

The spelling of 520078672 in words is "five hundred twenty million, seventy-eight thousand, six hundred seventy-two".