557985750 has 128 divisors (see below), whose sum is σ = 1661257728. Its totient is φ = 121968000.

The previous prime is 557985731. The next prime is 557985811. The reversal of 557985750 is 57589755.

It is a super-2 number, since 2×557985750² = 622696194406125000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 557985693 and 557985702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118440 + ... + 123060.

It is an arithmetic number, because the mean of its divisors is an integer number (12978576).

Almost surely, 2^557985750 is an apocalyptic number.

557985750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 557985750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830628864).

557985750 is an abundant number, since it is smaller than the sum of its proper divisors (1103271978).

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

557985750 is a wasteful number, since it uses less digits than its factorization.

557985750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671 (or 4661 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 51.

The square root of 557985750 is about 23621.7219948081. The cubic root of 557985750 is about 823.2676228471.

The spelling of 557985750 in words is "five hundred fifty-seven million, nine hundred eighty-five thousand, seven hundred fifty".