57438233 has 2 divisors, whose sum is σ = 57438234. Its totient is φ = 57438232.

The previous prime is 57438187. The next prime is 57438281. The reversal of 57438233 is 33283475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50239744 + 7198489 = 7088^2 + 2683^2 .

It is a cyclic number.

It is not a de Polignac number, because 57438233 - 2⁶ = 57438169 is a prime.

It is a super-2 number, since 2×57438233² = 6598301220324578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57438193 and 57438202.

It is not a weakly prime, because it can be changed into another prime (57432233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28719116 + 28719117.

It is an arithmetic number, because the mean of its divisors is an integer number (28719117).

Almost surely, 2^57438233 is an apocalyptic number.

It is an amenable number.

57438233 is a deficient number, since it is larger than the sum of its proper divisors (1).

57438233 is an equidigital number, since it uses as much as digits as its factorization.

57438233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 35.

The square root of 57438233 is about 7578.8015543356. The cubic root of 57438233 is about 385.8338770783.

The spelling of 57438233 in words is "fifty-seven million, four hundred thirty-eight thousand, two hundred thirty-three".