55117862 has 4 divisors (see below), whose sum is σ = 82676796. Its totient is φ = 27558930.

The previous prime is 55117861. The next prime is 55117891. The reversal of 55117862 is 26871155.

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

It is a super-2 number, since 2×55117862² = 6075957422902088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55117861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13779464 + ... + 13779467.

It is an arithmetic number, because the mean of its divisors is an integer number (20669199).

Almost surely, 2^55117862 is an apocalyptic number.

55117862 is a deficient number, since it is larger than the sum of its proper divisors (27558934).

55117862 is a wasteful number, since it uses less digits than its factorization.

55117862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27558933.

The product of its digits is 16800, while the sum is 35.

The square root of 55117862 is about 7424.1404889724. The cubic root of 55117862 is about 380.5667029190.

The spelling of 55117862 in words is "fifty-five million, one hundred seventeen thousand, eight hundred sixty-two".