25134130305 has 32 divisors (see below), whose sum is σ = 45234558720. Its totient is φ = 13404863664.

The previous prime is 25134130283. The next prime is 25134130319. The reversal of 25134130305 is 50303143152.

It is not a de Polignac number, because 25134130305 - 2²² = 25129936001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1138317 + ... + 1160186.

It is an arithmetic number, because the mean of its divisors is an integer number (1413579960).

Almost surely, 2^25134130305 is an apocalyptic number.

It is an amenable number.

25134130305 is a deficient number, since it is larger than the sum of its proper divisors (20100428415).

25134130305 is an frugal number, since it uses more digits than its factorization.

25134130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298529 (or 2298511 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 25134130305 its reverse (50303143152), we get a palindrome (75437273457).

The spelling of 25134130305 in words is "twenty-five billion, one hundred thirty-four million, one hundred thirty thousand, three hundred five".