257825222903 has 2 divisors, whose sum is σ = 257825222904. Its totient is φ = 257825222902.

The previous prime is 257825222899. The next prime is 257825222909. The reversal of 257825222903 is 309222528752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257825222903 - 2² = 257825222899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257825222909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128912611451 + 128912611452.

It is an arithmetic number, because the mean of its divisors is an integer number (128912611452).

Almost surely, 2^257825222903 is an apocalyptic number.

257825222903 is a deficient number, since it is larger than the sum of its proper divisors (1).

257825222903 is an equidigital number, since it uses as much as digits as its factorization.

257825222903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 257825222903 in words is "two hundred fifty-seven billion, eight hundred twenty-five million, two hundred twenty-two thousand, nine hundred three".