557767 has 6 divisors (see below), whose sum is σ = 648888. Its totient is φ = 478044.

The previous prime is 557761. The next prime is 557779. The reversal of 557767 is 767755.

It is not a de Polignac number, because 557767 - 2³ = 557759 is a prime.

It is a super-2 number, since 2×557767² = 622208052578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557761) 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, 5643 + ... + 5740.

It is an arithmetic number, because the mean of its divisors is an integer number (108148).

2⁵⁵⁷⁷⁶⁷ is an apocalyptic number.

557767 is a deficient number, since it is larger than the sum of its proper divisors (91121).

557767 is a wasteful number, since it uses less digits than its factorization.

557767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397 (or 11390 counting only the distinct ones).

The product of its digits is 51450, while the sum is 37.

The square root of 557767 is about 746.8380011756. The cubic root of 557767 is about 82.3160025517.

The spelling of 557767 in words is "five hundred fifty-seven thousand, seven hundred sixty-seven".