55956676619 has 2 divisors, whose sum is σ = 55956676620. Its totient is φ = 55956676618.

The previous prime is 55956676583. The next prime is 55956676663. The reversal of 55956676619 is 91667665955.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55956676619 is a prime.

It is a super-2 number, since 2×55956676619² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55956676669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27978338309 + 27978338310.

It is an arithmetic number, because the mean of its divisors is an integer number (27978338310).

Almost surely, 2^55956676619 is an apocalyptic number.

55956676619 is a deficient number, since it is larger than the sum of its proper divisors (1).

55956676619 is an equidigital number, since it uses as much as digits as its factorization.

55956676619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 91854000, while the sum is 65.

The spelling of 55956676619 in words is "fifty-five billion, nine hundred fifty-six million, six hundred seventy-six thousand, six hundred nineteen".