57366233 has 2 divisors, whose sum is σ = 57366234. Its totient is φ = 57366232.

The previous prime is 57366223. The next prime is 57366241. The reversal of 57366233 is 33266375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56731024 + 635209 = 7532^2 + 797^2 .

It is a cyclic number.

It is not a de Polignac number, because 57366233 - 2⁸ = 57365977 is a prime.

It is a super-2 number, since 2×57366233² = 6581769377220578, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57366193 and 57366202.

It is not a weakly prime, because it can be changed into another prime (57366223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28683116 + 28683117.

It is an arithmetic number, because the mean of its divisors is an integer number (28683117).

Almost surely, 2^57366233 is an apocalyptic number.

57366233 is the 4049-th centered heptagonal number.

It is an amenable number.

57366233 is a deficient number, since it is larger than the sum of its proper divisors (1).

57366233 is an equidigital number, since it uses as much as digits as its factorization.

57366233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 35.

The square root of 57366233 is about 7574.0499734290. The cubic root of 57366233 is about 385.6725927826.

The spelling of 57366233 in words is "fifty-seven million, three hundred sixty-six thousand, two hundred thirty-three".