55636215 has 8 divisors (see below), whose sum is σ = 89017968. Its totient is φ = 29672640.

The previous prime is 55636213. The next prime is 55636219. The reversal of 55636215 is 51263655.

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

It is not a de Polignac number, because 55636215 - 2¹ = 55636213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55636211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854526 + ... + 1854555.

It is an arithmetic number, because the mean of its divisors is an integer number (11127246).

Almost surely, 2^55636215 is an apocalyptic number.

55636215 is a deficient number, since it is larger than the sum of its proper divisors (33381753).

55636215 is a wasteful number, since it uses less digits than its factorization.

55636215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709089.

The product of its digits is 27000, while the sum is 33.

The square root of 55636215 is about 7458.9687625033. The cubic root of 55636215 is about 381.7559889168.

The spelling of 55636215 in words is "fifty-five million, six hundred thirty-six thousand, two hundred fifteen".