55227220325525 has 6 divisors (see below), whose sum is σ = 68481753203682. Its totient is φ = 44181776260400.

The previous prime is 55227220325503. The next prime is 55227220325597. The reversal of 55227220325525 is 52552302272255.

It can be written as a sum of positive squares in 3 ways, for example, as 2884990572676 + 52342229752849 = 1698526^2 + 7234793^2 .

It is not a de Polignac number, because 55227220325525 - 2⁶ = 55227220325461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55227220325525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1104544406486 + ... + 1104544406535.

It is an arithmetic number, because the mean of its divisors is an integer number (11413625533947).

Almost surely, 2^{55227220325525} is an apocalyptic number.

It is an amenable number.

55227220325525 is a deficient number, since it is larger than the sum of its proper divisors (13254532878157).

55227220325525 is a wasteful number, since it uses less digits than its factorization.

55227220325525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209088813031 (or 2209088813026 counting only the distinct ones).

The product of its (nonzero) digits is 4200000, while the sum is 47.

The spelling of 55227220325525 in words is "fifty-five trillion, two hundred twenty-seven billion, two hundred twenty million, three hundred twenty-five thousand, five hundred twenty-five".