55552886 has 4 divisors (see below), whose sum is σ = 83329332. Its totient is φ = 27776442.

The previous prime is 55552877. The next prime is 55552901. The reversal of 55552886 is 68825555.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×55552886² = 6172246285857992, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13888220 + ... + 13888223.

It is an arithmetic number, because the mean of its divisors is an integer number (20832333).

Almost surely, 2^55552886 is an apocalyptic number.

55552886 is a deficient number, since it is larger than the sum of its proper divisors (27776446).

55552886 is a wasteful number, since it uses less digits than its factorization.

55552886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27776445.

The product of its digits is 480000, while the sum is 44.

The square root of 55552886 is about 7453.3808436172. The cubic root of 55552886 is about 381.5653023300.

The spelling of 55552886 in words is "fifty-five million, five hundred fifty-two thousand, eight hundred eighty-six".