55518673 has 16 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 45662400.

The previous prime is 55518667. The next prime is 55518677. The reversal of 55518673 is 37681555.

It is a de Polignac number, because none of the positive numbers 2^k-55518673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55518677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35988 + ... + 37498.

It is an arithmetic number, because the mean of its divisors is an integer number (4127760).

Almost surely, 2^55518673 is an apocalyptic number.

It is an amenable number.

55518673 is a deficient number, since it is larger than the sum of its proper divisors (10525487).

55518673 is a wasteful number, since it uses less digits than its factorization.

55518673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728.

The product of its digits is 126000, while the sum is 40.

The square root of 55518673 is about 7451.0853571812. The cubic root of 55518673 is about 381.4869555181.

The spelling of 55518673 in words is "fifty-five million, five hundred eighteen thousand, six hundred seventy-three".