55202020255 has 4 divisors (see below), whose sum is σ = 66242424312. Its totient is φ = 44161616200.

The previous prime is 55202020151. The next prime is 55202020273.

55202020255 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55202020255 - 2²⁷ = 55067802527 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 5520202021 + ... + 5520202030.

It is an arithmetic number, because the mean of its divisors is an integer number (16560606078).

Almost surely, 2^55202020255 is an apocalyptic number.

55202020255 is a deficient number, since it is larger than the sum of its proper divisors (11040404057).

55202020255 is a wasteful number, since it uses less digits than its factorization.

55202020255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040404056.

The product of its (nonzero) digits is 10000, while the sum is 28.

It can be divided in two parts, 552020 and 20255, that added together give a palindrome (572275).

The spelling of 55202020255 in words is "fifty-five billion, two hundred two million, twenty thousand, two hundred fifty-five".