57749927 has 2 divisors, whose sum is σ = 57749928. Its totient is φ = 57749926.

The previous prime is 57749917. The next prime is 57749929. The reversal of 57749927 is 72994775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57749927 - 2⁶ = 57749863 is a prime.

Together with 57749929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57749929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28874963 + 28874964.

It is an arithmetic number, because the mean of its divisors is an integer number (28874964).

Almost surely, 2^57749927 is an apocalyptic number.

57749927 is a deficient number, since it is larger than the sum of its proper divisors (1).

57749927 is an equidigital number, since it uses as much as digits as its factorization.

57749927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 50.

The square root of 57749927 is about 7599.3372737364. The cubic root of 57749927 is about 386.5305397585.

The spelling of 57749927 in words is "fifty-seven million, seven hundred forty-nine thousand, nine hundred twenty-seven".