257250508451 has 2 divisors, whose sum is σ = 257250508452. Its totient is φ = 257250508450.

The previous prime is 257250508397. The next prime is 257250508453. The reversal of 257250508451 is 154805052752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257250508451 - 2²⁶ = 257183399587 is a prime.

Together with 257250508453, 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 (257250508453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128625254225 + 128625254226.

It is an arithmetic number, because the mean of its divisors is an integer number (128625254226).

Almost surely, 2^257250508451 is an apocalyptic number.

257250508451 is a deficient number, since it is larger than the sum of its proper divisors (1).

257250508451 is an equidigital number, since it uses as much as digits as its factorization.

257250508451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560000, while the sum is 44.

The spelling of 257250508451 in words is "two hundred fifty-seven billion, two hundred fifty million, five hundred eight thousand, four hundred fifty-one".