557328565 has 4 divisors (see below), whose sum is σ = 668794284. Its totient is φ = 445862848.

The previous prime is 557328557. The next prime is 557328581. The reversal of 557328565 is 565823755.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165328164 + 392000401 = 12858^2 + 19799^2 .

It is a cyclic number.

It is not a de Polignac number, because 557328565 - 2³ = 557328557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55732852 + ... + 55732861.

It is an arithmetic number, because the mean of its divisors is an integer number (167198571).

Almost surely, 2^557328565 is an apocalyptic number.

It is an amenable number.

557328565 is a deficient number, since it is larger than the sum of its proper divisors (111465719).

557328565 is a wasteful number, since it uses less digits than its factorization.

557328565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111465718.

The product of its digits is 1260000, while the sum is 46.

The square root of 557328565 is about 23607.8072891152. The cubic root of 557328565 is about 822.9442862264.

The spelling of 557328565 in words is "five hundred fifty-seven million, three hundred twenty-eight thousand, five hundred sixty-five".