57072259 has 2 divisors, whose sum is σ = 57072260. Its totient is φ = 57072258.

The previous prime is 57072227. The next prime is 57072277. The reversal of 57072259 is 95227075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57072259 - 2⁵ = 57072227 is a prime.

It is not a weakly prime, because it can be changed into another prime (57072289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28536129 + 28536130.

It is an arithmetic number, because the mean of its divisors is an integer number (28536130).

Almost surely, 2^57072259 is an apocalyptic number.

57072259 is a deficient number, since it is larger than the sum of its proper divisors (1).

57072259 is an equidigital number, since it uses as much as digits as its factorization.

57072259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 57072259 is about 7554.6183887738. The cubic root of 57072259 is about 385.0126695105.

The spelling of 57072259 in words is "fifty-seven million, seventy-two thousand, two hundred fifty-nine".