233557057 has 2 divisors, whose sum is σ = 233557058. Its totient is φ = 233557056.

The previous prime is 233557031. The next prime is 233557081. The reversal of 233557057 is 750755332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129026881 + 104530176 = 11359^2 + 10224^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233557057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (233557087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116778528 + 116778529.

It is an arithmetic number, because the mean of its divisors is an integer number (116778529).

Almost surely, 2^233557057 is an apocalyptic number.

It is an amenable number.

233557057 is a deficient number, since it is larger than the sum of its proper divisors (1).

233557057 is an equidigital number, since it uses as much as digits as its factorization.

233557057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110250, while the sum is 37.

The square root of 233557057 is about 15282.5736379708. The cubic root of 233557057 is about 615.8349485064.

The spelling of 233557057 in words is "two hundred thirty-three million, five hundred fifty-seven thousand, fifty-seven".