557107813 has 4 divisors (see below), whose sum is σ = 557429548. Its totient is φ = 556786080.

The previous prime is 557107787. The next prime is 557107841. The reversal of 557107813 is 318701755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99062209 + 458045604 = 9953^2 + 21402^2 .

It is a cyclic number.

It is not a de Polignac number, because 557107813 - 2⁵ = 557107781 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 (557107883) 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, 158256 + ... + 161737.

It is an arithmetic number, because the mean of its divisors is an integer number (139357387).

Almost surely, 2^557107813 is an apocalyptic number.

It is an amenable number.

557107813 is a deficient number, since it is larger than the sum of its proper divisors (321735).

557107813 is a wasteful number, since it uses less digits than its factorization.

557107813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321734.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 557107813 is about 23603.1314236056. The cubic root of 557107813 is about 822.8356186772.

The spelling of 557107813 in words is "five hundred fifty-seven million, one hundred seven thousand, eight hundred thirteen".