557602409 has 32 divisors (see below), whose sum is σ = 730867200. Its totient is φ = 421920576.

The previous prime is 557602399. The next prime is 557602447. The reversal of 557602409 is 904206755.

It is a happy number.

It is not a de Polignac number, because 557602409 - 2¹² = 557598313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (557602489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99839 + ... + 105275.

It is an arithmetic number, because the mean of its divisors is an integer number (22839600).

Almost surely, 2^557602409 is an apocalyptic number.

It is an amenable number.

557602409 is a deficient number, since it is larger than the sum of its proper divisors (173264791).

557602409 is a wasteful number, since it uses less digits than its factorization.

557602409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494 (or 5480 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 557602409 is about 23613.6064378146. The cubic root of 557602409 is about 823.0790490152.

The spelling of 557602409 in words is "five hundred fifty-seven million, six hundred two thousand, four hundred nine".