257249084523 has 32 divisors (see below), whose sum is σ = 359823781440. Its totient is φ = 163268689920.

The previous prime is 257249084503. The next prime is 257249084549. The reversal of 257249084523 is 325480942752.

It is not a de Polignac number, because 257249084523 - 2⁹ = 257249084011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257249084503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1829593 + ... + 1965173.

It is an arithmetic number, because the mean of its divisors is an integer number (11244493170).

Almost surely, 2^257249084523 is an apocalyptic number.

257249084523 is a deficient number, since it is larger than the sum of its proper divisors (102574696917).

257249084523 is a wasteful number, since it uses less digits than its factorization.

257249084523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135919.

The product of its (nonzero) digits is 4838400, while the sum is 51.

The spelling of 257249084523 in words is "two hundred fifty-seven billion, two hundred forty-nine million, eighty-four thousand, five hundred twenty-three".