557097797 has 8 divisors (see below), whose sum is σ = 562813440. Its totient is φ = 551396160.

The previous prime is 557097773. The next prime is 557097817. The reversal of 557097797 is 797790755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 557097797 - 2²⁴ = 540320581 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 (557097997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88604 + ... + 94682.

It is an arithmetic number, because the mean of its divisors is an integer number (70351680).

Almost surely, 2^557097797 is an apocalyptic number.

It is an amenable number.

557097797 is a deficient number, since it is larger than the sum of its proper divisors (5715643).

557097797 is a wasteful number, since it uses less digits than its factorization.

557097797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7003.

The product of its (nonzero) digits is 4862025, while the sum is 56.

The square root of 557097797 is about 23602.9192474151. The cubic root of 557097797 is about 822.8306875126.

The spelling of 557097797 in words is "five hundred fifty-seven million, ninety-seven thousand, seven hundred ninety-seven".