556274377 has 2 divisors, whose sum is σ = 556274378. Its totient is φ = 556274376.

The previous prime is 556274353. The next prime is 556274431. The reversal of 556274377 is 773472655.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376204816 + 180069561 = 19396^2 + 13419^2 .

It is a cyclic number.

It is not a de Polignac number, because 556274377 - 2⁷ = 556274249 is a prime.

It is not a weakly prime, because it can be changed into another prime (556274177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278137188 + 278137189.

It is an arithmetic number, because the mean of its divisors is an integer number (278137189).

Almost surely, 2^556274377 is an apocalyptic number.

It is an amenable number.

556274377 is a deficient number, since it is larger than the sum of its proper divisors (1).

556274377 is an equidigital number, since it uses as much as digits as its factorization.

556274377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1234800, while the sum is 46.

The square root of 556274377 is about 23585.4696158461. The cubic root of 556274377 is about 822.4250918622.

The spelling of 556274377 in words is "five hundred fifty-six million, two hundred seventy-four thousand, three hundred seventy-seven".