25227272765 has 8 divisors (see below), whose sum is σ = 30326501088. Its totient is φ = 20145969040.

The previous prime is 25227272729. The next prime is 25227272801. The reversal of 25227272765 is 56727272252.

It is an interprime number because it is at equal distance from previous prime (25227272729) and next prime (25227272801).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-25227272765 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4478051 + ... + 4483680.

It is an arithmetic number, because the mean of its divisors is an integer number (3790812636).

Almost surely, 2^25227272765 is an apocalyptic number.

It is an amenable number.

25227272765 is a deficient number, since it is larger than the sum of its proper divisors (5099228323).

25227272765 is an equidigital number, since it uses as much as digits as its factorization.

25227272765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8962299.

The product of its digits is 1646400, while the sum is 47.

The spelling of 25227272765 in words is "twenty-five billion, two hundred twenty-seven million, two hundred seventy-two thousand, seven hundred sixty-five".