54223979531 has 2 divisors, whose sum is σ = 54223979532. Its totient is φ = 54223979530.

The previous prime is 54223979507. The next prime is 54223979539. The reversal of 54223979531 is 13597932245.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54223979531 - 2²⁶ = 54156870667 is a prime.

It is a super-2 number, since 2×54223979531² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54223979531.

It is not a weakly prime, because it can be changed into another prime (54223979539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27111989765 + 27111989766.

It is an arithmetic number, because the mean of its divisors is an integer number (27111989766).

Almost surely, 2^54223979531 is an apocalyptic number.

54223979531 is a deficient number, since it is larger than the sum of its proper divisors (1).

54223979531 is an equidigital number, since it uses as much as digits as its factorization.

54223979531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 50.

The spelling of 54223979531 in words is "fifty-four billion, two hundred twenty-three million, nine hundred seventy-nine thousand, five hundred thirty-one".