557285409 has 12 divisors (see below), whose sum is σ = 847334800. Its totient is φ = 351969624.

The previous prime is 557285401. The next prime is 557285429. The reversal of 557285409 is 904582755.

It is not a de Polignac number, because 557285409 - 2³ = 557285401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557285401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1629319 + ... + 1629660.

Almost surely, 2^557285409 is an apocalyptic number.

It is an amenable number.

557285409 is a deficient number, since it is larger than the sum of its proper divisors (290049391).

557285409 is a wasteful number, since it uses less digits than its factorization.

557285409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259004 (or 3259001 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The square root of 557285409 is about 23606.8932517602. The cubic root of 557285409 is about 822.9230444775.

The spelling of 557285409 in words is "five hundred fifty-seven million, two hundred eighty-five thousand, four hundred nine".