556051399 has 2 divisors, whose sum is σ = 556051400. Its totient is φ = 556051398.

The previous prime is 556051393. The next prime is 556051403. The reversal of 556051399 is 993150655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 556051399 - 2⁷ = 556051271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556051393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278025699 + 278025700.

It is an arithmetic number, because the mean of its divisors is an integer number (278025700).

Almost surely, 2^556051399 is an apocalyptic number.

556051399 is a deficient number, since it is larger than the sum of its proper divisors (1).

556051399 is an equidigital number, since it uses as much as digits as its factorization.

556051399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 182250, while the sum is 43.

The square root of 556051399 is about 23580.7421214855. The cubic root of 556051399 is about 822.3151897361.

The spelling of 556051399 in words is "five hundred fifty-six million, fifty-one thousand, three hundred ninety-nine".