557227890 has 32 divisors (see below), whose sum is σ = 1485941760. Its totient is φ = 148594032.

The previous prime is 557227873. The next prime is 557227933. The reversal of 557227890 is 98722755.

It is a happy number.

557227890 is a `hidden beast` number, since 5 + 572 + 2 + 78 + 9 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031634 + ... + 1032173.

It is an arithmetic number, because the mean of its divisors is an integer number (46435680).

Almost surely, 2^557227890 is an apocalyptic number.

557227890 is an abundant number, since it is smaller than the sum of its proper divisors (928713870).

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

557227890 is a wasteful number, since it uses less digits than its factorization.

557227890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063823 (or 2063817 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 557227890 is about 23605.6749532819. The cubic root of 557227890 is about 822.8947314333.

The spelling of 557227890 in words is "five hundred fifty-seven million, two hundred twenty-seven thousand, eight hundred ninety".