55575123 has 4 divisors (see below), whose sum is σ = 74100168. Its totient is φ = 37050080.

The previous prime is 55575101. The next prime is 55575139. The reversal of 55575123 is 32157555.

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

It is a cyclic number.

It is not a de Polignac number, because 55575123 - 2⁶ = 55575059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55575523) 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, 9262518 + ... + 9262523.

It is an arithmetic number, because the mean of its divisors is an integer number (18525042).

Almost surely, 2^55575123 is an apocalyptic number.

55575123 is a deficient number, since it is larger than the sum of its proper divisors (18525045).

55575123 is a wasteful number, since it uses less digits than its factorization.

55575123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18525044.

The product of its digits is 26250, while the sum is 33.

The square root of 55575123 is about 7454.8724335162. The cubic root of 55575123 is about 381.6162071906.

The spelling of 55575123 in words is "fifty-five million, five hundred seventy-five thousand, one hundred twenty-three".