25381281675 has 12 divisors (see below), whose sum is σ = 41963719160. Its totient is φ = 13536683520.

The previous prime is 25381281659. The next prime is 25381281677. The reversal of 25381281675 is 57618218352.

It is not a de Polignac number, because 25381281675 - 2⁴ = 25381281659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25381281677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169208470 + ... + 169208619.

Almost surely, 2^25381281675 is an apocalyptic number.

25381281675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25381281675 is a deficient number, since it is larger than the sum of its proper divisors (16582437485).

25381281675 is a wasteful number, since it uses less digits than its factorization.

25381281675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338417102 (or 338417097 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The spelling of 25381281675 in words is "twenty-five billion, three hundred eighty-one million, two hundred eighty-one thousand, six hundred seventy-five".