557607420 has 72 divisors (see below), whose sum is σ = 1694290416. Its totient is φ = 148442112.

The previous prime is 557607409. The next prime is 557607439. The reversal of 557607420 is 24706755.

557607420 is a `hidden beast` number, since 5 + 5 + 7 + 607 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118839 + ... + 123441.

Almost surely, 2^557607420 is an apocalyptic number.

It is an amenable number.

557607420 is an abundant number, since it is smaller than the sum of its proper divisors (1136682996).

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

557607420 is a wasteful number, since it uses less digits than its factorization.

557607420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291 (or 5286 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 557607420 is about 23613.7125416568. The cubic root of 557607420 is about 823.0815145933.

The spelling of 557607420 in words is "five hundred fifty-seven million, six hundred seven thousand, four hundred twenty".