57060247 has 2 divisors, whose sum is σ = 57060248. Its totient is φ = 57060246.

The previous prime is 57060221. The next prime is 57060271. The reversal of 57060247 is 74206075.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57060247 - 2²³ = 48671639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57060547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28530123 + 28530124.

It is an arithmetic number, because the mean of its divisors is an integer number (28530124).

Almost surely, 2^57060247 is an apocalyptic number.

57060247 is a deficient number, since it is larger than the sum of its proper divisors (1).

57060247 is an equidigital number, since it uses as much as digits as its factorization.

57060247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 57060247 is about 7553.8233365628. The cubic root of 57060247 is about 384.9856564061.

The spelling of 57060247 in words is "fifty-seven million, sixty thousand, two hundred forty-seven".