521025550411055 has 8 divisors (see below), whose sum is σ = 635480343452544. Its totient is φ = 409987318356000.

The previous prime is 521025550411043. The next prime is 521025550411123. The reversal of 521025550411055 is 550114055520125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 521025550411055 - 2¹⁰ = 521025550410031 is a prime.

It is a super-2 number, since 2×521025550411055² (a number of 30 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 854140246271 + ... + 854140246880.

It is an arithmetic number, because the mean of its divisors is an integer number (79435042931568).

Almost surely, 2^{521025550411055} is an apocalyptic number.

521025550411055 is a deficient number, since it is larger than the sum of its proper divisors (114454793041489).

521025550411055 is a wasteful number, since it uses less digits than its factorization.

521025550411055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708280493217.

The product of its (nonzero) digits is 250000, while the sum is 41.

The spelling of 521025550411055 in words is "five hundred twenty-one trillion, twenty-five billion, five hundred fifty million, four hundred eleven thousand, fifty-five".