555604979 has 2 divisors, whose sum is σ = 555604980. Its totient is φ = 555604978.

The previous prime is 555604961. The next prime is 555604991. The reversal of 555604979 is 979406555.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555604979 is a prime.

It is not a weakly prime, because it can be changed into another prime (555604579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277802489 + 277802490.

It is an arithmetic number, because the mean of its divisors is an integer number (277802490).

Almost surely, 2^555604979 is an apocalyptic number.

555604979 is a deficient number, since it is larger than the sum of its proper divisors (1).

555604979 is an equidigital number, since it uses as much as digits as its factorization.

555604979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The square root of 555604979 is about 23571.2744458165. The cubic root of 555604979 is about 822.0950684597.

The spelling of 555604979 in words is "five hundred fifty-five million, six hundred four thousand, nine hundred seventy-nine".