57266533 has 2 divisors, whose sum is σ = 57266534. Its totient is φ = 57266532.

The previous prime is 57266509. The next prime is 57266567. The reversal of 57266533 is 33566275.

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., 56220004 + 1046529 = 7498^2 + 1023^2 .

It is a cyclic number.

It is not a de Polignac number, because 57266533 - 2⁵ = 57266501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57266492 and 57266501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57266593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28633266 + 28633267.

It is an arithmetic number, because the mean of its divisors is an integer number (28633267).

Almost surely, 2^57266533 is an apocalyptic number.

It is an amenable number.

57266533 is a deficient number, since it is larger than the sum of its proper divisors (1).

57266533 is an equidigital number, since it uses as much as digits as its factorization.

57266533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 37.

The square root of 57266533 is about 7567.4654277373. The cubic root of 57266533 is about 385.4490358646.

The spelling of 57266533 in words is "fifty-seven million, two hundred sixty-six thousand, five hundred thirty-three".