54522021553251 has 16 divisors (see below), whose sum is σ = 83081350473984. Its totient is φ = 31155375347424.

The previous prime is 54522021553213. The next prime is 54522021553253. The reversal of 54522021553251 is 15235512022545.

It is not a de Polignac number, because 54522021553251 - 2¹⁰ = 54522021552227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54522021553253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8578741 + ... + 13514393.

It is an arithmetic number, because the mean of its divisors is an integer number (5192584404624).

Almost surely, 2^{54522021553251} is an apocalyptic number.

54522021553251 is a deficient number, since it is larger than the sum of its proper divisors (28559328920733).

54522021553251 is a wasteful number, since it uses less digits than its factorization.

54522021553251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5461690.

The product of its (nonzero) digits is 600000, while the sum is 42.

Adding to 54522021553251 its reverse (15235512022545), we get a palindrome (69757533575796).

The spelling of 54522021553251 in words is "fifty-four trillion, five hundred twenty-two billion, twenty-one million, five hundred fifty-three thousand, two hundred fifty-one".