55220402255 has 16 divisors (see below), whose sum is σ = 66968272800. Its totient is φ = 43708291200.

The previous prime is 55220402249. The next prime is 55220402267.

55220402255 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55220402255 - 2⁶ = 55220402191 is a prime.

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, 309776 + ... + 454314.

It is an arithmetic number, because the mean of its divisors is an integer number (4185517050).

Almost surely, 2^55220402255 is an apocalyptic number.

55220402255 is a deficient number, since it is larger than the sum of its proper divisors (11747870545).

55220402255 is a wasteful number, since it uses less digits than its factorization.

55220402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145354.

The product of its (nonzero) digits is 40000, while the sum is 32.

The spelling of 55220402255 in words is "fifty-five billion, two hundred twenty million, four hundred two thousand, two hundred fifty-five".