521877294552 has 32 divisors (see below), whose sum is σ = 1304779489200. Its totient is φ = 173947597824.

The previous prime is 521877294539. The next prime is 521877294581. The reversal of 521877294552 is 255492778125.

521877294552 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 521877294492 and 521877294501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344193 + ... + 1078064.

Almost surely, 2^521877294552 is an apocalyptic number.

It is an amenable number.

521877294552 is an abundant number, since it is smaller than the sum of its proper divisors (782902194648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

521877294552 is a wasteful number, since it uses less digits than its factorization.

521877294552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437555 (or 1437551 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 57.

The spelling of 521877294552 in words is "five hundred twenty-one billion, eight hundred seventy-seven million, two hundred ninety-four thousand, five hundred fifty-two".