557488723 has 4 divisors (see below), whose sum is σ = 608169528. Its totient is φ = 506807920.

The previous prime is 557488703. The next prime is 557488733. The reversal of 557488723 is 327884755.

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 557488723 - 2⁵ = 557488691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557488703) 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, 25340386 + ... + 25340407.

It is an arithmetic number, because the mean of its divisors is an integer number (152042382).

Almost surely, 2^557488723 is an apocalyptic number.

557488723 is a deficient number, since it is larger than the sum of its proper divisors (50680805).

557488723 is a wasteful number, since it uses less digits than its factorization.

557488723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50680804.

The product of its digits is 1881600, while the sum is 49.

The square root of 557488723 is about 23611.1991012740. The cubic root of 557488723 is about 823.0231077667.

The spelling of 557488723 in words is "five hundred fifty-seven million, four hundred eighty-eight thousand, seven hundred twenty-three".