25260266251 has 12 divisors (see below), whose sum is σ = 27771415056. Its totient is φ = 22958917520.

The previous prime is 25260266249. The next prime is 25260266287. The reversal of 25260266251 is 15266206252.

It is not a de Polignac number, because 25260266251 - 2¹ = 25260266249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25260266251.

It is not an unprimeable number, because it can be changed into a prime (25260267251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613746 + ... + 653608.

It is an arithmetic number, because the mean of its divisors is an integer number (2314284588).

Almost surely, 2^25260266251 is an apocalyptic number.

25260266251 is a deficient number, since it is larger than the sum of its proper divisors (2511148805).

25260266251 is a wasteful number, since it uses less digits than its factorization.

25260266251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45122 (or 45111 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 25260266251 in words is "twenty-five billion, two hundred sixty million, two hundred sixty-six thousand, two hundred fifty-one".