557097757 has 4 divisors (see below), whose sum is σ = 557639136. Its totient is φ = 556556380.

The previous prime is 557097731. The next prime is 557097773. The reversal of 557097757 is 757790755.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557097757 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 (557097557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269143 + ... + 271204.

It is an arithmetic number, because the mean of its divisors is an integer number (139409784).

Almost surely, 2^557097757 is an apocalyptic number.

It is an amenable number.

557097757 is a deficient number, since it is larger than the sum of its proper divisors (541379).

557097757 is a wasteful number, since it uses less digits than its factorization.

557097757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541378.

The product of its (nonzero) digits is 2701125, while the sum is 52.

The square root of 557097757 is about 23602.9184000623. The cubic root of 557097757 is about 822.8306678194.

The spelling of 557097757 in words is "five hundred fifty-seven million, ninety-seven thousand, seven hundred fifty-seven".