55308123 has 96 divisors (see below), whose sum is σ = 101191680. Its totient is φ = 29652480.

The previous prime is 55308109. The next prime is 55308163. The reversal of 55308123 is 32180355.

55308123 is a `hidden beast` number, since 5 + 530 + 8 + 123 = 666.

It is not a de Polignac number, because 55308123 - 2⁵ = 55308091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55308163) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1784118 + ... + 1784148.

It is an arithmetic number, because the mean of its divisors is an integer number (1054080).

Almost surely, 2^55308123 is an apocalyptic number.

55308123 is a deficient number, since it is larger than the sum of its proper divisors (45883557).

55308123 is a wasteful number, since it uses less digits than its factorization.

55308123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 55308123 is about 7436.9431220092. The cubic root of 55308123 is about 381.0040919642.

Adding to 55308123 its reverse (32180355), we get a palindrome (87488478).

The spelling of 55308123 in words is "fifty-five million, three hundred eight thousand, one hundred twenty-three".