557786245 has 8 divisors (see below), whose sum is σ = 675484920. Its totient is φ = 442134720.

The previous prime is 557786231. The next prime is 557786279. The reversal of 557786245 is 542687755.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55264356 + 502521889 = 7434^2 + 22417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557786245 - 2¹⁷ = 557655173 is a prime.

It is a super-2 number, since 2×557786245² = 622250990222400050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 511186 + ... + 512275.

It is an arithmetic number, because the mean of its divisors is an integer number (84435615).

Almost surely, 2^557786245 is an apocalyptic number.

It is an amenable number.

557786245 is a deficient number, since it is larger than the sum of its proper divisors (117698675).

557786245 is a wasteful number, since it uses less digits than its factorization.

557786245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023575.

The product of its digits is 2352000, while the sum is 49.

The square root of 557786245 is about 23617.4987032920. The cubic root of 557786245 is about 823.1694927508.

The spelling of 557786245 in words is "five hundred fifty-seven million, seven hundred eighty-six thousand, two hundred forty-five".