557745233 has 2 divisors, whose sum is σ = 557745234. Its totient is φ = 557745232.

The previous prime is 557745229. The next prime is 557745277. The reversal of 557745233 is 332547755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 529782289 + 27962944 = 23017^2 + 5288^2 .

It is a cyclic number.

It is not a de Polignac number, because 557745233 - 2² = 557745229 is a prime.

It is a super-2 number, since 2×557745233² = 622159489868448578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557745203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278872616 + 278872617.

It is an arithmetic number, because the mean of its divisors is an integer number (278872617).

Almost surely, 2^557745233 is an apocalyptic number.

It is an amenable number.

557745233 is a deficient number, since it is larger than the sum of its proper divisors (1).

557745233 is an equidigital number, since it uses as much as digits as its factorization.

557745233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 441000, while the sum is 41.

The square root of 557745233 is about 23616.6304328115. The cubic root of 557745233 is about 823.1493173670.

The spelling of 557745233 in words is "five hundred fifty-seven million, seven hundred forty-five thousand, two hundred thirty-three".