557500244 has 36 divisors (see below), whose sum is σ = 1201677876. Its totient is φ = 224872704.

The previous prime is 557500231. The next prime is 557500253. The reversal of 557500244 is 442005755.

It can be written as a sum of positive squares in 2 ways, for example, as 520752400 + 36747844 = 22820^2 + 6062^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 557500244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80327 + ... + 86990.

It is an arithmetic number, because the mean of its divisors is an integer number (33379941).

Almost surely, 2^557500244 is an apocalyptic number.

It is an amenable number.

557500244 is an abundant number, since it is smaller than the sum of its proper divisors (644177632).

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

557500244 is a wasteful number, since it uses less digits than its factorization.

557500244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167352 (or 167343 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 557500244 is about 23611.4430732219. The cubic root of 557500244 is about 823.0287772291.

Adding to 557500244 its reverse (442005755), we get a palindrome (999505999).

The spelling of 557500244 in words is "five hundred fifty-seven million, five hundred thousand, two hundred forty-four".