257500450523 has 4 divisors (see below), whose sum is σ = 257501524848. Its totient is φ = 257499376200.

The previous prime is 257500450517. The next prime is 257500450541. The reversal of 257500450523 is 325054005752.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 257500450523 - 2¹⁶ = 257500384987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257500450573) 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 in 3 ways as a sum of consecutive naturals, for example, 4298 + ... + 717648.

It is an arithmetic number, because the mean of its divisors is an integer number (64375381212).

Almost surely, 2^257500450523 is an apocalyptic number.

257500450523 is a deficient number, since it is larger than the sum of its proper divisors (1074325).

257500450523 is an equidigital number, since it uses as much as digits as its factorization.

257500450523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074324.

The product of its (nonzero) digits is 210000, while the sum is 38.

The spelling of 257500450523 in words is "two hundred fifty-seven billion, five hundred million, four hundred fifty thousand, five hundred twenty-three".