55422055 has 32 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 39312000.

The previous prime is 55422053. The next prime is 55422067. The reversal of 55422055 is 55022455.

It is not a de Polignac number, because 55422055 - 2¹ = 55422053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55422053) 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, 220680 + ... + 220930.

It is an arithmetic number, because the mean of its divisors is an integer number (2328480).

Almost surely, 2^55422055 is an apocalyptic number.

55422055 is a deficient number, since it is larger than the sum of its proper divisors (19089305).

55422055 is a wasteful number, since it uses less digits than its factorization.

55422055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

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

The square root of 55422055 is about 7444.5990489750. The cubic root of 55422055 is about 381.2655290638.

The spelling of 55422055 in words is "fifty-five million, four hundred twenty-two thousand, fifty-five".