25251289353 has 14 divisors (see below), whose sum is σ = 37859615994. Its totient is φ = 16834192416.

The previous prime is 25251289319. The next prime is 25251289363. The reversal of 25251289353 is 35398215252.

25251289353 is a `hidden beast` number, since 2 + 5 + 2 + 512 + 89 + 3 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15587023104 + 9664266249 = 124848^2 + 98307^2 .

It is not a de Polignac number, because 25251289353 - 2⁹ = 25251288841 is a prime.

It is a super-2 number, since 2×25251289353² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25251289299 and 25251289308.

It is not an unprimeable number, because it can be changed into a prime (25251289363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 17318400 + ... + 17319857.

Almost surely, 2^25251289353 is an apocalyptic number.

It is an amenable number.

25251289353 is a deficient number, since it is larger than the sum of its proper divisors (12608326641).

25251289353 is an frugal number, since it uses more digits than its factorization.

25251289353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34638275 (or 34638260 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 25251289353 in words is "twenty-five billion, two hundred fifty-one million, two hundred eighty-nine thousand, three hundred fifty-three".