57251749739 has 2 divisors, whose sum is σ = 57251749740. Its totient is φ = 57251749738.

The previous prime is 57251749721. The next prime is 57251749741. The reversal of 57251749739 is 93794715275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57251749739 - 2⁸ = 57251749483 is a prime.

Together with 57251749741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57251749769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28625874869 + 28625874870.

It is an arithmetic number, because the mean of its divisors is an integer number (28625874870).

Almost surely, 2^57251749739 is an apocalyptic number.

57251749739 is a deficient number, since it is larger than the sum of its proper divisors (1).

57251749739 is an equidigital number, since it uses as much as digits as its factorization.

57251749739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16669800, while the sum is 59.

The spelling of 57251749739 in words is "fifty-seven billion, two hundred fifty-one million, seven hundred forty-nine thousand, seven hundred thirty-nine".