25266290275265 has 12 divisors (see below), whose sum is σ = 32831226891324. Its totient is φ = 18658183587264.

The previous prime is 25266290275231. The next prime is 25266290275309. The reversal of 25266290275265 is 56257209266252.

It can be written as a sum of positive squares in 6 ways, for example, as 7217583141136 + 18048707134129 = 2686556^2 + 4248377^2 .

It is not a de Polignac number, because 25266290275265 - 2⁶ = 25266290275201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14950466774 + ... + 14950468463.

It is an arithmetic number, because the mean of its divisors is an integer number (2735935574277).

Almost surely, 2^{25266290275265} is an apocalyptic number.

It is an amenable number.

25266290275265 is a deficient number, since it is larger than the sum of its proper divisors (7564936616059).

25266290275265 is a wasteful number, since it uses less digits than its factorization.

25266290275265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29900935268 (or 29900935255 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 59.

The spelling of 25266290275265 in words is "twenty-five trillion, two hundred sixty-six billion, two hundred ninety million, two hundred seventy-five thousand, two hundred sixty-five".