257063875390225 has 12 divisors (see below), whose sum is σ = 318768839316400. Its totient is φ = 205644884936400.

The previous prime is 257063875390219. The next prime is 257063875390241. The reversal of 257063875390225 is 522093578360752.

257063875390225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-257063875390225 is a prime.

It is a super-2 number, since 2×257063875390225² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

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, 154540575 + ... + 156195124.

Almost surely, 2^{257063875390225} is an apocalyptic number.

257063875390225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257063875390225 is a deficient number, since it is larger than the sum of its proper divisors (61704963926175).

257063875390225 is a wasteful number, since it uses less digits than its factorization.

257063875390225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310768800 (or 310768795 counting only the distinct ones).

The product of its (nonzero) digits is 190512000, while the sum is 64.

The spelling of 257063875390225 in words is "two hundred fifty-seven trillion, sixty-three billion, eight hundred seventy-five million, three hundred ninety thousand, two hundred twenty-five".