500000557 has 12 divisors (see below), whose sum is σ = 582468636. Its totient is φ = 427956480.

The previous prime is 500000551. The next prime is 500000587. The reversal of 500000557 is 755000005.

It can be written as a sum of positive squares in 2 ways, for example, as 416935561 + 83064996 = 20419^2 + 9114^2 .

It is not a de Polignac number, because 500000557 - 2²³ = 491611949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500000551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28957 + ... + 42877.

It is an arithmetic number, because the mean of its divisors is an integer number (48539053).

Almost surely, 2^500000557 is an apocalyptic number.

It is an amenable number.

500000557 is a deficient number, since it is larger than the sum of its proper divisors (82468079).

500000557 is a wasteful number, since it uses less digits than its factorization.

500000557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14668 (or 14661 counting only the distinct ones).

The product of its (nonzero) digits is 875, while the sum is 22.

The square root of 500000557 is about 22360.6922298931. The cubic root of 500000557 is about 793.7008207115.

The spelling of 500000557 in words is "five hundred million, five hundred fifty-seven", and thus it is an aban number.