57311273 has 2 divisors, whose sum is σ = 57311274. Its totient is φ = 57311272.

The previous prime is 57311237. The next prime is 57311311. The reversal of 57311273 is 37211375.

Together with previous prime (57311237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36808489 + 20502784 = 6067^2 + 4528^2 .

It is a cyclic number.

It is not a de Polignac number, because 57311273 - 2⁸ = 57311017 is a prime.

It is not a weakly prime, because it can be changed into another prime (57311203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28655636 + 28655637.

It is an arithmetic number, because the mean of its divisors is an integer number (28655637).

Almost surely, 2^57311273 is an apocalyptic number.

It is an amenable number.

57311273 is a deficient number, since it is larger than the sum of its proper divisors (1).

57311273 is an equidigital number, since it uses as much as digits as its factorization.

57311273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 29.

The square root of 57311273 is about 7570.4209262101. The cubic root of 57311273 is about 385.5493882576.

The spelling of 57311273 in words is "fifty-seven million, three hundred eleven thousand, two hundred seventy-three".