556517023 has 4 divisors (see below), whose sum is σ = 557905248. Its totient is φ = 555128800.

The previous prime is 556517021. The next prime is 556517041. The reversal of 556517023 is 320715655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 556517023 - 2¹ = 556517021 is a prime.

It is a super-2 number, since 2×556517023² = 619422393777565058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556517023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556517021) 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, 693511 + ... + 694312.

It is an arithmetic number, because the mean of its divisors is an integer number (139476312).

Almost surely, 2^556517023 is an apocalyptic number.

556517023 is a deficient number, since it is larger than the sum of its proper divisors (1388225).

556517023 is a wasteful number, since it uses less digits than its factorization.

556517023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388224.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 556517023 is about 23590.6130272191. The cubic root of 556517023 is about 822.5446546525.

The spelling of 556517023 in words is "five hundred fifty-six million, five hundred seventeen thousand, twenty-three".