257548004551 has 2 divisors, whose sum is σ = 257548004552. Its totient is φ = 257548004550.

The previous prime is 257548004537. The next prime is 257548004563. The reversal of 257548004551 is 155400845752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 257548004551 - 2⁷ = 257548004423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (257548004951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128774002275 + 128774002276.

It is an arithmetic number, because the mean of its divisors is an integer number (128774002276).

Almost surely, 2^257548004551 is an apocalyptic number.

257548004551 is a deficient number, since it is larger than the sum of its proper divisors (1).

257548004551 is an equidigital number, since it uses as much as digits as its factorization.

257548004551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120000, while the sum is 46.

The spelling of 257548004551 in words is "two hundred fifty-seven billion, five hundred forty-eight million, four thousand, five hundred fifty-one".