57270649 has 2 divisors, whose sum is σ = 57270650. Its totient is φ = 57270648.

The previous prime is 57270607. The next prime is 57270691. The reversal of 57270649 is 94607275.

It is a balanced prime because it is at equal distance from previous prime (57270607) and next prime (57270691).

It can be written as a sum of positive squares in only one way, i.e., 37601424 + 19669225 = 6132^2 + 4435^2 .

It is a cyclic number.

It is not a de Polignac number, because 57270649 - 2¹⁵ = 57237881 is a prime.

It is not a weakly prime, because it can be changed into another prime (57270149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28635324 + 28635325.

It is an arithmetic number, because the mean of its divisors is an integer number (28635325).

Almost surely, 2^57270649 is an apocalyptic number.

It is an amenable number.

57270649 is a deficient number, since it is larger than the sum of its proper divisors (1).

57270649 is an equidigital number, since it uses as much as digits as its factorization.

57270649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 57270649 is about 7567.7373765215. The cubic root of 57270649 is about 385.4582702880.

The spelling of 57270649 in words is "fifty-seven million, two hundred seventy thousand, six hundred forty-nine".