55420313659 has 2 divisors, whose sum is σ = 55420313660. Its totient is φ = 55420313658.

The previous prime is 55420313593. The next prime is 55420313693. The reversal of 55420313659 is 95631302455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55420313659 - 2²⁵ = 55386759227 is a prime.

It is a super-2 number, since 2×55420313659² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55420313759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27710156829 + 27710156830.

It is an arithmetic number, because the mean of its divisors is an integer number (27710156830).

Almost surely, 2^55420313659 is an apocalyptic number.

55420313659 is a deficient number, since it is larger than the sum of its proper divisors (1).

55420313659 is an equidigital number, since it uses as much as digits as its factorization.

55420313659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 43.

The spelling of 55420313659 in words is "fifty-five billion, four hundred twenty million, three hundred thirteen thousand, six hundred fifty-nine".