55575275831 has 4 divisors (see below), whose sum is σ = 55636550472. Its totient is φ = 55514001192.

The previous prime is 55575275827. The next prime is 55575275851. The reversal of 55575275831 is 13857257555.

It is a happy number.

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 55575275831 - 2² = 55575275827 is a prime.

It is a super-2 number, since 2×55575275831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55575275851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30635960 + ... + 30637773.

It is an arithmetic number, because the mean of its divisors is an integer number (13909137618).

Almost surely, 2^55575275831 is an apocalyptic number.

55575275831 is a deficient number, since it is larger than the sum of its proper divisors (61274641).

55575275831 is an equidigital number, since it uses as much as digits as its factorization.

55575275831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61274640.

The product of its digits is 7350000, while the sum is 53.

The spelling of 55575275831 in words is "fifty-five billion, five hundred seventy-five million, two hundred seventy-five thousand, eight hundred thirty-one".