2555451979 has 2 divisors, whose sum is σ = 2555451980. Its totient is φ = 2555451978.

The previous prime is 2555451967. The next prime is 2555452049. The reversal of 2555451979 is 9791545552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2555451979 - 2¹⁹ = 2554927691 is a prime.

It is not a weakly prime, because it can be changed into another prime (2505451979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277725989 + 1277725990.

It is an arithmetic number, because the mean of its divisors is an integer number (1277725990).

Almost surely, 2^2555451979 is an apocalyptic number.

2555451979 is a deficient number, since it is larger than the sum of its proper divisors (1).

2555451979 is an equidigital number, since it uses as much as digits as its factorization.

2555451979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2835000, while the sum is 52.

The square root of 2555451979 is about 50551.4785045898. The cubic root of 2555451979 is about 1367.1701722858.

The spelling of 2555451979 in words is "two billion, five hundred fifty-five million, four hundred fifty-one thousand, nine hundred seventy-nine".