55222629 has 32 divisors (see below), whose sum is σ = 93327360. Its totient is φ = 28209600.

The previous prime is 55222627. The next prime is 55222633. The reversal of 55222629 is 92622255.

It is not a de Polignac number, because 55222629 - 2¹ = 55222627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 55222629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55222627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12132 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (2916480).

Almost surely, 2^55222629 is an apocalyptic number.

It is an amenable number.

55222629 is a deficient number, since it is larger than the sum of its proper divisors (38104731).

55222629 is a wasteful number, since it uses less digits than its factorization.

55222629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001.

The product of its digits is 21600, while the sum is 33.

The square root of 55222629 is about 7431.1929728678. The cubic root of 55222629 is about 380.8076749926.

It can be divided in two parts, 552226 and 29, that added together give a palindrome (552255).

The spelling of 55222629 in words is "fifty-five million, two hundred twenty-two thousand, six hundred twenty-nine".