521524402255055 has 16 divisors (see below), whose sum is σ = 627284087875584. Its totient is φ = 416249660228640.

The previous prime is 521524402255039. The next prime is 521524402255061. The reversal of 521524402255055 is 550552204425125.

It is not a de Polignac number, because 521524402255055 - 2⁴ = 521524402255039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704847524 + ... + 705587046.

It is an arithmetic number, because the mean of its divisors is an integer number (39205255492224).

Almost surely, 2^{521524402255055} is an apocalyptic number.

521524402255055 is a deficient number, since it is larger than the sum of its proper divisors (105759685620529).

521524402255055 is a wasteful number, since it uses less digits than its factorization.

521524402255055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067206.

The product of its (nonzero) digits is 4000000, while the sum is 47.

The spelling of 521524402255055 in words is "five hundred twenty-one trillion, five hundred twenty-four billion, four hundred two million, two hundred fifty-five thousand, fifty-five".