57266947 has 2 divisors, whose sum is σ = 57266948. Its totient is φ = 57266946.

The previous prime is 57266939. The next prime is 57266981. The reversal of 57266947 is 74966275.

57266947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

57266947 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 57266947 - 2³ = 57266939 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57266897 and 57266906.

It is not a weakly prime, because it can be changed into another prime (57266147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28633473 + 28633474.

It is an arithmetic number, because the mean of its divisors is an integer number (28633474).

Almost surely, 2^57266947 is an apocalyptic number.

57266947 is a deficient number, since it is larger than the sum of its proper divisors (1).

57266947 is an equidigital number, since it uses as much as digits as its factorization.

57266947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 57266947 is about 7567.4927816285. The cubic root of 57266947 is about 385.4499647115.

The spelling of 57266947 in words is "fifty-seven million, two hundred sixty-six thousand, nine hundred forty-seven".