57254750491 has 2 divisors, whose sum is σ = 57254750492. Its totient is φ = 57254750490.

The previous prime is 57254750459. The next prime is 57254750533. The reversal of 57254750491 is 19405745275.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57254750491 - 2⁵ = 57254750459 is a prime.

It is not a weakly prime, because it can be changed into another prime (57254750401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28627375245 + 28627375246.

It is an arithmetic number, because the mean of its divisors is an integer number (28627375246).

Almost surely, 2^57254750491 is an apocalyptic number.

57254750491 is a deficient number, since it is larger than the sum of its proper divisors (1).

57254750491 is an equidigital number, since it uses as much as digits as its factorization.

57254750491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764000, while the sum is 49.

The spelling of 57254750491 in words is "fifty-seven billion, two hundred fifty-four million, seven hundred fifty thousand, four hundred ninety-one".