57214277 has 2 divisors, whose sum is σ = 57214278. Its totient is φ = 57214276.

The previous prime is 57214259. The next prime is 57214309. The reversal of 57214277 is 77241275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35628961 + 21585316 = 5969^2 + 4646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57214277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57210277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28607138 + 28607139.

It is an arithmetic number, because the mean of its divisors is an integer number (28607139).

Almost surely, 2^57214277 is an apocalyptic number.

It is an amenable number.

57214277 is a deficient number, since it is larger than the sum of its proper divisors (1).

57214277 is an equidigital number, since it uses as much as digits as its factorization.

57214277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27440, while the sum is 35.

The square root of 57214277 is about 7564.0119645595. The cubic root of 57214277 is about 385.3317587894.

The spelling of 57214277 in words is "fifty-seven million, two hundred fourteen thousand, two hundred seventy-seven".