57266291 has 2 divisors, whose sum is σ = 57266292. Its totient is φ = 57266290.

The previous prime is 57266273. The next prime is 57266309. The reversal of 57266291 is 19266275.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (57266273) and next prime (57266309).

It is a cyclic number.

It is not a de Polignac number, because 57266291 - 2²² = 53071987 is a prime.

It is not a weakly prime, because it can be changed into another prime (57266191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28633145 + 28633146.

It is an arithmetic number, because the mean of its divisors is an integer number (28633146).

Almost surely, 2^57266291 is an apocalyptic number.

57266291 is a deficient number, since it is larger than the sum of its proper divisors (1).

57266291 is an equidigital number, since it uses as much as digits as its factorization.

57266291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The square root of 57266291 is about 7567.4494382189. The cubic root of 57266291 is about 385.4484929134.

The spelling of 57266291 in words is "fifty-seven million, two hundred sixty-six thousand, two hundred ninety-one".