55641155 has 16 divisors (see below), whose sum is σ = 69612960. Its totient is φ = 42663456.

The previous prime is 55641137. The next prime is 55641161. The reversal of 55641155 is 55114655.

It is not a de Polignac number, because 55641155 - 2⁸ = 55640899 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830432 + ... + 830498.

It is an arithmetic number, because the mean of its divisors is an integer number (4350810).

Almost surely, 2^55641155 is an apocalyptic number.

55641155 is a deficient number, since it is larger than the sum of its proper divisors (13971805).

55641155 is an frugal number, since it uses more digits than its factorization.

55641155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 109 counting only the distinct ones).

The product of its digits is 15000, while the sum is 32.

The square root of 55641155 is about 7459.2999001247. The cubic root of 55641155 is about 381.7672874254.

The spelling of 55641155 in words is "fifty-five million, six hundred forty-one thousand, one hundred fifty-five".