557223457 has 4 divisors (see below), whose sum is σ = 636826816. Its totient is φ = 477620100.

The previous prime is 557223427. The next prime is 557223463. The reversal of 557223457 is 754322755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 557223457 - 2²⁷ = 423005729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557223427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39801669 + ... + 39801682.

It is an arithmetic number, because the mean of its divisors is an integer number (159206704).

Almost surely, 2^557223457 is an apocalyptic number.

It is an amenable number.

557223457 is a deficient number, since it is larger than the sum of its proper divisors (79603359).

557223457 is an equidigital number, since it uses as much as digits as its factorization.

557223457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79603358.

The product of its digits is 294000, while the sum is 40.

The square root of 557223457 is about 23605.5810561825. The cubic root of 557223457 is about 822.8925492609.

It can be divided in two parts, 55722345 and 7, that multiplied together give a triangular number (390056415 = T₂₇₉₃₀).

The spelling of 557223457 in words is "five hundred fifty-seven million, two hundred twenty-three thousand, four hundred fifty-seven".