257295046951 has 2 divisors, whose sum is σ = 257295046952. Its totient is φ = 257295046950.

The previous prime is 257295046907. The next prime is 257295047003. The reversal of 257295046951 is 159640592752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257295046951 - 2³¹ = 255147563303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257295046892 and 257295046901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257295046901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128647523475 + 128647523476.

It is an arithmetic number, because the mean of its divisors is an integer number (128647523476).

Almost surely, 2^257295046951 is an apocalyptic number.

257295046951 is a deficient number, since it is larger than the sum of its proper divisors (1).

257295046951 is an equidigital number, since it uses as much as digits as its factorization.

257295046951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 257295046951 in words is "two hundred fifty-seven billion, two hundred ninety-five million, forty-six thousand, nine hundred fifty-one".