57408233 has 2 divisors, whose sum is σ = 57408234. Its totient is φ = 57408232.

The previous prime is 57408227. The next prime is 57408271. The reversal of 57408233 is 33280475.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45657049 + 11751184 = 6757^2 + 3428^2 .

It is a cyclic number.

It is not a de Polignac number, because 57408233 - 2⁴ = 57408217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57408233.

It is not a weakly prime, because it can be changed into another prime (57408203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28704116 + 28704117.

It is an arithmetic number, because the mean of its divisors is an integer number (28704117).

Almost surely, 2^57408233 is an apocalyptic number.

It is an amenable number.

57408233 is a deficient number, since it is larger than the sum of its proper divisors (1).

57408233 is an equidigital number, since it uses as much as digits as its factorization.

57408233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 57408233 is about 7576.8220910881. The cubic root of 57408233 is about 385.7666916775.

The spelling of 57408233 in words is "fifty-seven million, four hundred eight thousand, two hundred thirty-three".