556329457 has 2 divisors, whose sum is σ = 556329458. Its totient is φ = 556329456.

The previous prime is 556329419. The next prime is 556329479. The reversal of 556329457 is 754923655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392079601 + 164249856 = 19801^2 + 12816^2 .

It is a cyclic number.

It is not a de Polignac number, because 556329457 - 2²³ = 547940849 is a prime.

It is not a weakly prime, because it can be changed into another prime (556329757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278164728 + 278164729.

It is an arithmetic number, because the mean of its divisors is an integer number (278164729).

Almost surely, 2^556329457 is an apocalyptic number.

It is an amenable number.

556329457 is a deficient number, since it is larger than the sum of its proper divisors (1).

556329457 is an equidigital number, since it uses as much as digits as its factorization.

556329457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 46.

The square root of 556329457 is about 23586.6372550222. The cubic root of 556329457 is about 822.4522353492.

The spelling of 556329457 in words is "five hundred fifty-six million, three hundred twenty-nine thousand, four hundred fifty-seven".