25761267 has 16 divisors (see below), whose sum is σ = 43617280. Its totient is φ = 14720616.

The previous prime is 25761259. The next prime is 25761271. The reversal of 25761267 is 76216752.

It is not a de Polignac number, because 25761267 - 2³ = 25761259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25761247) 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, 67963 + ... + 68340.

It is an arithmetic number, because the mean of its divisors is an integer number (2726080).

Almost surely, 2^25761267 is an apocalyptic number.

25761267 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

25761267 is a deficient number, since it is larger than the sum of its proper divisors (17856013).

25761267 is a wasteful number, since it uses less digits than its factorization.

25761267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136319 (or 136313 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 25761267 is about 5075.5558316307. Note that the first 3 decimals coincide. The cubic root of 25761267 is about 295.3400923072.

The spelling of 25761267 in words is "twenty-five million, seven hundred sixty-one thousand, two hundred sixty-seven".