5556505979 has 2 divisors, whose sum is σ = 5556505980. Its totient is φ = 5556505978.

The previous prime is 5556505943. The next prime is 5556505993. The reversal of 5556505979 is 9795056555.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5556505979 - 2¹² = 5556501883 is a prime.

It is not a weakly prime, because it can be changed into another prime (5556505909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778252989 + 2778252990.

It is an arithmetic number, because the mean of its divisors is an integer number (2778252990).

Almost surely, 2^5556505979 is an apocalyptic number.

5556505979 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556505979 is an equidigital number, since it uses as much as digits as its factorization.

5556505979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10631250, while the sum is 56.

The square root of 5556505979 is about 74541.9746116240. The cubic root of 5556505979 is about 1771.1986071072.

The spelling of 5556505979 in words is "five billion, five hundred fifty-six million, five hundred five thousand, nine hundred seventy-nine".