257525727275 has 12 divisors (see below), whose sum is σ = 329632931904. Its totient is φ = 199374756000.

The previous prime is 257525727223. The next prime is 257525727289. The reversal of 257525727275 is 572727525752.

It is not a de Polignac number, because 257525727275 - 2¹⁴ = 257525710891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 257525727275.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166144856 + ... + 166146405.

It is an arithmetic number, because the mean of its divisors is an integer number (27469410992).

Almost surely, 2^257525727275 is an apocalyptic number.

257525727275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257525727275 is a deficient number, since it is larger than the sum of its proper divisors (72107204629).

257525727275 is a wasteful number, since it uses less digits than its factorization.

257525727275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332291302 (or 332291297 counting only the distinct ones).

The product of its digits is 24010000, while the sum is 56.

The spelling of 257525727275 in words is "two hundred fifty-seven billion, five hundred twenty-five million, seven hundred twenty-seven thousand, two hundred seventy-five".