55076840237581 has 2 divisors, whose sum is σ = 55076840237582. Its totient is φ = 55076840237580.

The previous prime is 55076840237567. The next prime is 55076840237609. The reversal of 55076840237581 is 18573204867055.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47266436253481 + 7810403984100 = 6875059^2 + 2794710^2 .

It is a cyclic number.

It is not a de Polignac number, because 55076840237581 - 2⁷ = 55076840237453 is a prime.

It is a super-2 number, since 2×55076840237581² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55076840297581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538420118790 + 27538420118791.

It is an arithmetic number, because the mean of its divisors is an integer number (27538420118791).

Almost surely, 2^{55076840237581} is an apocalyptic number.

It is an amenable number.

55076840237581 is a deficient number, since it is larger than the sum of its proper divisors (1).

55076840237581 is an equidigital number, since it uses as much as digits as its factorization.

55076840237581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448000, while the sum is 61.

The spelling of 55076840237581 in words is "fifty-five trillion, seventy-six billion, eight hundred forty million, two hundred thirty-seven thousand, five hundred eighty-one".