556124657 has 4 divisors (see below), whose sum is σ = 606681456. Its totient is φ = 505567860.

The previous prime is 556124609. The next prime is 556124693. The reversal of 556124657 is 756421655.

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 556124657 - 2¹⁸ = 555862513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556124057) 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, 25278383 + ... + 25278404.

It is an arithmetic number, because the mean of its divisors is an integer number (151670364).

Almost surely, 2^556124657 is an apocalyptic number.

It is an amenable number.

556124657 is a deficient number, since it is larger than the sum of its proper divisors (50556799).

556124657 is a wasteful number, since it uses less digits than its factorization.

556124657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50556798.

The product of its digits is 252000, while the sum is 41.

The square root of 556124657 is about 23582.2954141449. The cubic root of 556124657 is about 822.3513006190.

The spelling of 556124657 in words is "five hundred fifty-six million, one hundred twenty-four thousand, six hundred fifty-seven".