557804217402 has 24 divisors (see below), whose sum is σ = 1209075930036. Its totient is φ = 185857796736.

The previous prime is 557804217353. The next prime is 557804217431. The reversal of 557804217402 is 204712408755.

557804217402 is a `hidden beast` number, since 5 + 578 + 0 + 4 + 2 + 1 + 74 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 511609742361 + 46194475041 = 715269^2 + 214929^2 .

It is a super-2 number, since 2×557804217402² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6367153 + ... + 6454164.

Almost surely, 2^557804217402 is an apocalyptic number.

557804217402 is an abundant number, since it is smaller than the sum of its proper divisors (651271712634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557804217402 is a wasteful number, since it uses less digits than its factorization.

557804217402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12823742 (or 12823739 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 45.

The spelling of 557804217402 in words is "five hundred fifty-seven billion, eight hundred four million, two hundred seventeen thousand, four hundred two".