5553021525521 has 4 divisors (see below), whose sum is σ = 5610269170212. Its totient is φ = 5495773880832.

The previous prime is 5553021525479. The next prime is 5553021525553. The reversal of 5553021525521 is 1255251203555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1319155617025 + 4233865908496 = 1148545^2 + 2057636^2 .

It is a cyclic number.

It is not a de Polignac number, because 5553021525521 - 2¹⁴ = 5553021509137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5553221525521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28623822200 + ... + 28623822393.

It is an arithmetic number, because the mean of its divisors is an integer number (1402567292553).

Almost surely, 2^{5553021525521} is an apocalyptic number.

It is an amenable number.

5553021525521 is a deficient number, since it is larger than the sum of its proper divisors (57247644691).

5553021525521 is an equidigital number, since it uses as much as digits as its factorization.

5553021525521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57247644690.

The product of its (nonzero) digits is 375000, while the sum is 41.

The spelling of 5553021525521 in words is "five trillion, five hundred fifty-three billion, twenty-one million, five hundred twenty-five thousand, five hundred twenty-one".