557801 has 2 divisors, whose sum is σ = 557802. Its totient is φ = 557800.

The previous prime is 557789. The next prime is 557803. The reversal of 557801 is 108755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 10201 = 740^2 + 101^2 .

It is a cyclic number.

It is not a de Polignac number, because 557801 - 2¹⁴ = 541417 is a prime.

It is a super-2 number, since 2×557801² = 622283911202, which contains 22 as substring.

Together with 557803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (557803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278900 + 278901.

It is an arithmetic number, because the mean of its divisors is an integer number (278901).

2⁵⁵⁷⁸⁰¹ is an apocalyptic number.

It is an amenable number.

557801 is a deficient number, since it is larger than the sum of its proper divisors (1).

557801 is an equidigital number, since it uses as much as digits as its factorization.

557801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 557801 is about 746.8607634626. The cubic root of 557801 is about 82.3176751062.

The spelling of 557801 in words is "five hundred fifty-seven thousand, eight hundred one".