557750720 has 28 divisors (see below), whose sum is σ = 1328144664. Its totient is φ = 223100160.

The previous prime is 557750717. The next prime is 557750723. The reversal of 557750720 is 27057755.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (557750717) and next prime (557750723).

It is a super-2 number, since 2×557750720² = 622171731321036800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557750723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871166 + ... + 871805.

It is an arithmetic number, because the mean of its divisors is an integer number (47433738).

Almost surely, 2^557750720 is an apocalyptic number.

It is an amenable number.

557750720 is an abundant number, since it is smaller than the sum of its proper divisors (770393944).

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

557750720 is a wasteful number, since it uses less digits than its factorization.

557750720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742988 (or 1742978 counting only the distinct ones).

The product of its (nonzero) digits is 85750, while the sum is 38.

The square root of 557750720 is about 23616.7466006645. The cubic root of 557750720 is about 823.1520166911.

The spelling of 557750720 in words is "five hundred fifty-seven million, seven hundred fifty thousand, seven hundred twenty".