55811935967 has 2 divisors, whose sum is σ = 55811935968. Its totient is φ = 55811935966.

The previous prime is 55811935931. The next prime is 55811935973. The reversal of 55811935967 is 76953911855.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55811935967 - 2²² = 55807741663 is a prime.

It is a super-2 number, since 2×55811935967² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55811935987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27905967983 + 27905967984.

It is an arithmetic number, because the mean of its divisors is an integer number (27905967984).

Almost surely, 2^55811935967 is an apocalyptic number.

55811935967 is a deficient number, since it is larger than the sum of its proper divisors (1).

55811935967 is an equidigital number, since it uses as much as digits as its factorization.

55811935967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206000, while the sum is 59.

The spelling of 55811935967 in words is "fifty-five billion, eight hundred eleven million, nine hundred thirty-five thousand, nine hundred sixty-seven".