557049492 has 18 divisors (see below), whose sum is σ = 1408097418. Its totient is φ = 185683152.

The previous prime is 557049491. The next prime is 557049497. The reversal of 557049492 is 294940755.

557049492 is a `hidden beast` number, since 5 + 5 + 70 + 494 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 280026756 + 277022736 = 16734^2 + 16644^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557049491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7736763 + ... + 7736834.

Almost surely, 2^557049492 is an apocalyptic number.

It is an amenable number.

557049492 is an abundant number, since it is smaller than the sum of its proper divisors (851047926).

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

557049492 is a wasteful number, since it uses less digits than its factorization.

557049492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15473607 (or 15473602 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 557049492 is about 23601.8959407926. The cubic root of 557049492 is about 822.8069047433.

The spelling of 557049492 in words is "five hundred fifty-seven million, forty-nine thousand, four hundred ninety-two".