55646675131 has 2 divisors, whose sum is σ = 55646675132. Its totient is φ = 55646675130.

The previous prime is 55646675129. The next prime is 55646675153. The reversal of 55646675131 is 13157664655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55646675131 - 2¹ = 55646675129 is a prime.

It is a super-2 number, since 2×55646675131² (a number of 22 digits) contains 22 as substring.

Together with 55646675129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (55646675101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27823337565 + 27823337566.

It is an arithmetic number, because the mean of its divisors is an integer number (27823337566).

Almost surely, 2^55646675131 is an apocalyptic number.

55646675131 is a deficient number, since it is larger than the sum of its proper divisors (1).

55646675131 is an equidigital number, since it uses as much as digits as its factorization.

55646675131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268000, while the sum is 49.

The spelling of 55646675131 in words is "fifty-five billion, six hundred forty-six million, six hundred seventy-five thousand, one hundred thirty-one".