55422420231 has 16 divisors (see below), whose sum is σ = 76579135200. Its totient is φ = 35611473408.

The previous prime is 55422420211. The next prime is 55422420283. The reversal of 55422420231 is 13202422455.

It is not a de Polignac number, because 55422420231 - 2²⁶ = 55355311367 is a prime.

It is a super-2 number, since 2×55422420231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422420211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510286 + ... + 609291.

It is an arithmetic number, because the mean of its divisors is an integer number (4786195950).

Almost surely, 2^55422420231 is an apocalyptic number.

55422420231 is a deficient number, since it is larger than the sum of its proper divisors (21156714969).

55422420231 is a wasteful number, since it uses less digits than its factorization.

55422420231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120178.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 55422420231 its reverse (13202422455), we get a palindrome (68624842686).

The spelling of 55422420231 in words is "fifty-five billion, four hundred twenty-two million, four hundred twenty thousand, two hundred thirty-one".