2055981475531 has 2 divisors, whose sum is σ = 2055981475532. Its totient is φ = 2055981475530.

The previous prime is 2055981475523. The next prime is 2055981475591. The reversal of 2055981475531 is 1355741895502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2055981475531 - 2³ = 2055981475523 is a prime.

It is a super-2 number, since 2×2055981475531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2055981475591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027990737765 + 1027990737766.

It is an arithmetic number, because the mean of its divisors is an integer number (1027990737766).

Almost surely, 2^{2055981475531} is an apocalyptic number.

2055981475531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055981475531 is an equidigital number, since it uses as much as digits as its factorization.

2055981475531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560000, while the sum is 55.

The spelling of 2055981475531 in words is "two trillion, fifty-five billion, nine hundred eighty-one million, four hundred seventy-five thousand, five hundred thirty-one".