557956055571 has 4 divisors (see below), whose sum is σ = 743941407432. Its totient is φ = 371970703712.

The previous prime is 557956055543. The next prime is 557956055653. The reversal of 557956055571 is 175550659755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 557956055571 - 2¹⁹ = 557955531283 is a prime.

It is a super-2 number, since 2×557956055571² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557956055071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92992675926 + ... + 92992675931.

It is an arithmetic number, because the mean of its divisors is an integer number (185985351858).

Almost surely, 2^557956055571 is an apocalyptic number.

557956055571 is a deficient number, since it is larger than the sum of its proper divisors (185985351861).

557956055571 is a wasteful number, since it uses less digits than its factorization.

557956055571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185985351860.

The product of its (nonzero) digits is 41343750, while the sum is 60.

The spelling of 557956055571 in words is "five hundred fifty-seven billion, nine hundred fifty-six million, fifty-five thousand, five hundred seventy-one".