25267961 has 16 divisors (see below), whose sum is σ = 27941760. Its totient is φ = 22767360.

The previous prime is 25267951. The next prime is 25267973. The reversal of 25267961 is 16976252.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25267961 - 2⁶ = 25267897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25267951) 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, 28241 + ... + 29121.

It is an arithmetic number, because the mean of its divisors is an integer number (1746360).

Almost surely, 2^25267961 is an apocalyptic number.

It is an amenable number.

25267961 is a deficient number, since it is larger than the sum of its proper divisors (2673799).

25267961 is a wasteful number, since it uses less digits than its factorization.

25267961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976.

The product of its digits is 45360, while the sum is 38.

The square root of 25267961 is about 5026.7246791524. The cubic root of 25267961 is about 293.4427603386.

The spelling of 25267961 in words is "twenty-five million, two hundred sixty-seven thousand, nine hundred sixty-one".