520957707076 has 27 divisors (see below), whose sum is σ = 917592429117. Its totient is φ = 258799285440.

The previous prime is 520957707037. The next prime is 520957707103. The reversal of 520957707076 is 670707759025.

It is a happy number.

The square root of 520957707076 is 721774.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 326582532676 + 194375174400 = 571474^2 + 440880^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 241071436 + ... + 241073596.

Almost surely, 2^520957707076 is an apocalyptic number.

520957707076 is the 721774-th square number.

It is an amenable number.

520957707076 is a deficient number, since it is larger than the sum of its proper divisors (396634722041).

520957707076 is an frugal number, since it uses more digits than its factorization.

520957707076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 6482700, while the sum is 55.

The spelling of 520957707076 in words is "five hundred twenty billion, nine hundred fifty-seven million, seven hundred seven thousand, seventy-six".