557923969 has 4 divisors (see below), whose sum is σ = 590743044. Its totient is φ = 525104896.

The previous prime is 557923967. The next prime is 557923973. The reversal of 557923969 is 969329755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969329755 = 5 ⋅193865951.

It can be written as a sum of positive squares in 2 ways, for example, as 259049025 + 298874944 = 16095^2 + 17288^2 .

It is a cyclic number.

It is not a de Polignac number, because 557923969 - 2¹ = 557923967 is a prime.

It is a super-2 number, since 2×557923969² = 622558310369425922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557923967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16409512 + ... + 16409545.

It is an arithmetic number, because the mean of its divisors is an integer number (147685761).

Almost surely, 2^557923969 is an apocalyptic number.

It is an amenable number.

557923969 is a deficient number, since it is larger than the sum of its proper divisors (32819075).

557923969 is a wasteful number, since it uses less digits than its factorization.

557923969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32819074.

The product of its digits is 4592700, while the sum is 55.

The square root of 557923969 is about 23620.4142427689. The cubic root of 557923969 is about 823.2372372597.

The spelling of 557923969 in words is "five hundred fifty-seven million, nine hundred twenty-three thousand, nine hundred sixty-nine".