557438797 has 4 divisors (see below), whose sum is σ = 557487040. Its totient is φ = 557390556.

The previous prime is 557438767. The next prime is 557438803. The reversal of 557438797 is 797834755.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 557438797 - 2⁷ = 557438669 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 (557438767) 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, 4654 + ... + 33712.

It is an arithmetic number, because the mean of its divisors is an integer number (139371760).

Almost surely, 2^557438797 is an apocalyptic number.

It is an amenable number.

557438797 is a deficient number, since it is larger than the sum of its proper divisors (48243).

557438797 is a wasteful number, since it uses less digits than its factorization.

557438797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48242.

The product of its digits is 7408800, while the sum is 55.

The square root of 557438797 is about 23610.1418250717. The cubic root of 557438797 is about 822.9985383739.

The spelling of 557438797 in words is "five hundred fifty-seven million, four hundred thirty-eight thousand, seven hundred ninety-seven".