55980287959 has 2 divisors, whose sum is σ = 55980287960. Its totient is φ = 55980287958.

The previous prime is 55980287941. The next prime is 55980288061. The reversal of 55980287959 is 95978208955.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55980287959 - 2²³ = 55971899351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55980287894 and 55980287903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55980287159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27990143979 + 27990143980.

It is an arithmetic number, because the mean of its divisors is an integer number (27990143980).

Almost surely, 2^55980287959 is an apocalyptic number.

55980287959 is a deficient number, since it is larger than the sum of its proper divisors (1).

55980287959 is an equidigital number, since it uses as much as digits as its factorization.

55980287959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648000, while the sum is 67.

The spelling of 55980287959 in words is "fifty-five billion, nine hundred eighty million, two hundred eighty-seven thousand, nine hundred fifty-nine".