557298893 has 2 divisors, whose sum is σ = 557298894. Its totient is φ = 557298892.

The previous prime is 557298839. The next prime is 557298919. The reversal of 557298893 is 398892755.

Together with previous prime (557298839) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554979364 + 2319529 = 23558^2 + 1523^2 .

It is a cyclic number.

It is not a de Polignac number, because 557298893 - 2¹⁰ = 557297869 is a prime.

It is a super-2 number, since 2×557298893² = 621164112278050898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557298803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278649446 + 278649447.

It is an arithmetic number, because the mean of its divisors is an integer number (278649447).

Almost surely, 2^557298893 is an apocalyptic number.

It is an amenable number.

557298893 is a deficient number, since it is larger than the sum of its proper divisors (1).

557298893 is an equidigital number, since it uses as much as digits as its factorization.

557298893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5443200, while the sum is 56.

The square root of 557298893 is about 23607.1788445803. The cubic root of 557298893 is about 822.9296815343.

The spelling of 557298893 in words is "five hundred fifty-seven million, two hundred ninety-eight thousand, eight hundred ninety-three".