55368905 has 4 divisors (see below), whose sum is σ = 66442692. Its totient is φ = 44295120.

The previous prime is 55368899. The next prime is 55368913. The reversal of 55368905 is 50986355.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11703241 + 43665664 = 3421^2 + 6608^2 .

It is not a de Polignac number, because 55368905 - 2¹² = 55364809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536886 + ... + 5536895.

It is an arithmetic number, because the mean of its divisors is an integer number (16610673).

Almost surely, 2^55368905 is an apocalyptic number.

It is an amenable number.

55368905 is a deficient number, since it is larger than the sum of its proper divisors (11073787).

55368905 is a wasteful number, since it uses less digits than its factorization.

55368905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11073786.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 55368905 is about 7441.0284907397. The cubic root of 55368905 is about 381.1436116300.

It can be divided in two parts, 5536 and 8905, that added together give a palindrome (14441).

The spelling of 55368905 in words is "fifty-five million, three hundred sixty-eight thousand, nine hundred five".