557717420 has 24 divisors (see below), whose sum is σ = 1261299984. Its totient is φ = 205926336.

The previous prime is 557717417. The next prime is 557717429. The reversal of 557717420 is 24717755.

557717420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×557717420² = 622097441142912800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (557717429) 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, 1072274 + ... + 1072793.

It is an arithmetic number, because the mean of its divisors is an integer number (52554166).

Almost surely, 2^557717420 is an apocalyptic number.

It is an amenable number.

557717420 is an abundant number, since it is smaller than the sum of its proper divisors (703582564).

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

557717420 is a wasteful number, since it uses less digits than its factorization.

557717420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145089 (or 2145087 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 38.

The square root of 557717420 is about 23616.0415819417. The cubic root of 557717420 is about 823.1356345173.

The spelling of 557717420 in words is "five hundred fifty-seven million, seven hundred seventeen thousand, four hundred twenty".