557007233 has 2 divisors, whose sum is σ = 557007234. Its totient is φ = 557007232.

The previous prime is 557007221. The next prime is 557007281. The reversal of 557007233 is 332700755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 306355009 + 250652224 = 17503^2 + 15832^2 .

It is a cyclic number.

It is not a de Polignac number, because 557007233 - 2²⁴ = 540230017 is a prime.

It is a super-2 number, since 2×557007233² = 620514115228632578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 557007233.

It is not a weakly prime, because it can be changed into another prime (557007203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278503616 + 278503617.

It is an arithmetic number, because the mean of its divisors is an integer number (278503617).

Almost surely, 2^557007233 is an apocalyptic number.

It is an amenable number.

557007233 is a deficient number, since it is larger than the sum of its proper divisors (1).

557007233 is an equidigital number, since it uses as much as digits as its factorization.

557007233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 32.

The square root of 557007233 is about 23601.0006779374. Note that the first 3 decimals coincide. The cubic root of 557007233 is about 822.7860975698.

Subtracting from 557007233 its sum of digits (32), we obtain a square (557007201 = 23601²).

Adding to 557007233 its reverse (332700755), we get a palindrome (889707988).

The spelling of 557007233 in words is "five hundred fifty-seven million, seven thousand, two hundred thirty-three".