556123151 has 4 divisors (see below), whose sum is σ = 557378952. Its totient is φ = 554867352.

The previous prime is 556123097. The next prime is 556123163. The reversal of 556123151 is 151321655.

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 556123151 - 2²² = 551928847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556123181) 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, 627236 + ... + 628121.

It is an arithmetic number, because the mean of its divisors is an integer number (139344738).

Almost surely, 2^556123151 is an apocalyptic number.

556123151 is a deficient number, since it is larger than the sum of its proper divisors (1255801).

556123151 is a wasteful number, since it uses less digits than its factorization.

556123151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255800.

The product of its digits is 4500, while the sum is 29.

The square root of 556123151 is about 23582.2634833894. The cubic root of 556123151 is about 822.3505583021.

The spelling of 556123151 in words is "five hundred fifty-six million, one hundred twenty-three thousand, one hundred fifty-one".