557762561 has 4 divisors (see below), whose sum is σ = 558908352. Its totient is φ = 556616772.

The previous prime is 557762549. The next prime is 557762587. The reversal of 557762561 is 165267755.

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 not a de Polignac number, because 557762561 - 2⁶ = 557762497 is a prime.

It is a super-2 number, since 2×557762561² = 622198148906557442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557762591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572165 + ... + 573138.

It is an arithmetic number, because the mean of its divisors is an integer number (139727088).

Almost surely, 2^557762561 is an apocalyptic number.

It is an amenable number.

557762561 is a deficient number, since it is larger than the sum of its proper divisors (1145791).

557762561 is a wasteful number, since it uses less digits than its factorization.

557762561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145790.

The product of its digits is 441000, while the sum is 44.

The square root of 557762561 is about 23616.9972900875. The cubic root of 557762561 is about 823.1578417988.

The spelling of 557762561 in words is "five hundred fifty-seven million, seven hundred sixty-two thousand, five hundred sixty-one".