54991960531 has 2 divisors, whose sum is σ = 54991960532. Its totient is φ = 54991960530.

The previous prime is 54991960483. The next prime is 54991960601. The reversal of 54991960531 is 13506919945.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54991960531 - 2⁷ = 54991960403 is a prime.

It is a super-2 number, since 2×54991960531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54991960631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27495980265 + 27495980266.

It is an arithmetic number, because the mean of its divisors is an integer number (27495980266).

Almost surely, 2^54991960531 is an apocalyptic number.

54991960531 is a deficient number, since it is larger than the sum of its proper divisors (1).

54991960531 is an equidigital number, since it uses as much as digits as its factorization.

54991960531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The spelling of 54991960531 in words is "fifty-four billion, nine hundred ninety-one million, nine hundred sixty thousand, five hundred thirty-one".