55554931 has 4 divisors (see below), whose sum is σ = 56496600. Its totient is φ = 54613264.

The previous prime is 55554911. The next prime is 55554943. The reversal of 55554931 is 13945555.

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 55554931 - 2²³ = 47166323 is a prime.

It is a super-2 number, since 2×55554931² = 6172700716829522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55554911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470746 + ... + 470863.

It is an arithmetic number, because the mean of its divisors is an integer number (14124150).

Almost surely, 2^55554931 is an apocalyptic number.

55554931 is a deficient number, since it is larger than the sum of its proper divisors (941669).

55554931 is an equidigital number, since it uses as much as digits as its factorization.

55554931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941668.

The product of its digits is 67500, while the sum is 37.

The square root of 55554931 is about 7453.5180284212. The cubic root of 55554931 is about 381.5699843038.

The spelling of 55554931 in words is "fifty-five million, five hundred fifty-four thousand, nine hundred thirty-one".