557395456 has 60 divisors (see below), whose sum is σ = 1183381848. Its totient is φ = 262234112.

The previous prime is 557395429. The next prime is 557395459. The reversal of 557395456 is 654593755.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557395459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146085 + ... + 149851.

Almost surely, 2^557395456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557395456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591690924).

557395456 is an abundant number, since it is smaller than the sum of its proper divisors (625986392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557395456 is an equidigital number, since it uses as much as digits as its factorization.

557395456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819 (or 3786 counting only the distinct ones).

The product of its digits is 2835000, while the sum is 49.

The square root of 557395456 is about 23609.2239601390. The cubic root of 557395456 is about 822.9772083766.

The spelling of 557395456 in words is "five hundred fifty-seven million, three hundred ninety-five thousand, four hundred fifty-six".