25272135265 has 16 divisors (see below), whose sum is σ = 32693725008. Its totient is φ = 18642871296.

The previous prime is 25272135241. The next prime is 25272135299. The reversal of 25272135265 is 56253127252.

It can be written as a sum of positive squares in 8 ways, for example, as 1628176 + 25270507089 = 1276^2 + 158967^2 .

It is a cyclic number.

It is not a de Polignac number, because 25272135265 - 2⁵ = 25272135233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142044 + ... + 265933.

It is an arithmetic number, because the mean of its divisors is an integer number (2043357813).

Almost surely, 2^25272135265 is an apocalyptic number.

It is an amenable number.

25272135265 is a deficient number, since it is larger than the sum of its proper divisors (7421589743).

25272135265 is a wasteful number, since it uses less digits than its factorization.

25272135265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408948.

The product of its digits is 252000, while the sum is 40.

The spelling of 25272135265 in words is "twenty-five billion, two hundred seventy-two million, one hundred thirty-five thousand, two hundred sixty-five".