25267573065 has 16 divisors (see below), whose sum is σ = 46203562368. Its totient is φ = 11550890496.

The previous prime is 25267573043. The next prime is 25267573069. The reversal of 25267573065 is 56037576252.

It is a happy number.

It is not a de Polignac number, because 25267573065 - 2¹⁰ = 25267572041 is a prime.

It is a super-3 number, since 3×25267573065³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (25267573069) 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 15 ways as a sum of consecutive naturals, for example, 120321672 + ... + 120321881.

It is an arithmetic number, because the mean of its divisors is an integer number (2887722648).

Almost surely, 2^25267573065 is an apocalyptic number.

It is an amenable number.

25267573065 is a deficient number, since it is larger than the sum of its proper divisors (20935989303).

25267573065 is a wasteful number, since it uses less digits than its factorization.

25267573065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240643568.

The product of its (nonzero) digits is 2646000, while the sum is 48.

The spelling of 25267573065 in words is "twenty-five billion, two hundred sixty-seven million, five hundred seventy-three thousand, sixty-five".