557422587 has 8 divisors (see below), whose sum is σ = 825811280. Its totient is φ = 371615040.

The previous prime is 557422583. The next prime is 557422643. The reversal of 557422587 is 785224755.

557422587 is a `hidden beast` number, since 5 + 574 + 22 + 58 + 7 = 666.

It is not a de Polignac number, because 557422587 - 2² = 557422583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557422583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10322614 + ... + 10322667.

It is an arithmetic number, because the mean of its divisors is an integer number (103226410).

Almost surely, 2^557422587 is an apocalyptic number.

557422587 is a deficient number, since it is larger than the sum of its proper divisors (268388693).

557422587 is a wasteful number, since it uses less digits than its factorization.

557422587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20645290 (or 20645284 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The square root of 557422587 is about 23609.7985378952. The cubic root of 557422587 is about 822.9905608550.

It can be divided in two parts, 557422 and 587, that added together give a square (558009 = 747²).

The spelling of 557422587 in words is "five hundred fifty-seven million, four hundred twenty-two thousand, five hundred eighty-seven".