55636858 has 8 divisors (see below), whose sum is σ = 83636928. Its totient is φ = 27757884.

The previous prime is 55636853. The next prime is 55636859. The reversal of 55636858 is 85863655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55636858² = 6190919936224328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55636853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29116 + ... + 30967.

It is an arithmetic number, because the mean of its divisors is an integer number (10454616).

Almost surely, 2^55636858 is an apocalyptic number.

55636858 is a deficient number, since it is larger than the sum of its proper divisors (28000070).

55636858 is a wasteful number, since it uses less digits than its factorization.

55636858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60548.

The product of its digits is 864000, while the sum is 46.

The square root of 55636858 is about 7459.0118648518. The cubic root of 55636858 is about 381.7574595905.

It can be divided in two parts, 5563 and 6858, that added together give a palindrome (12421).

The spelling of 55636858 in words is "fifty-five million, six hundred thirty-six thousand, eight hundred fifty-eight".