55622655 has 48 divisors (see below), whose sum is σ = 108055584. Its totient is φ = 26231040.

The previous prime is 55622647. The next prime is 55622681.

55622655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55622655 - 2³ = 55622647 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16797 + ... + 19833.

It is an arithmetic number, because the mean of its divisors is an integer number (2251158).

Almost surely, 2^55622655 is an apocalyptic number.

55622655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55622655 is a deficient number, since it is larger than the sum of its proper divisors (52432929).

55622655 is a wasteful number, since it uses less digits than its factorization.

55622655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096 (or 3093 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 55622655 is about 7458.0597342741. The cubic root of 55622655 is about 381.7249717587.

The spelling of 55622655 in words is "fifty-five million, six hundred twenty-two thousand, six hundred fifty-five".