25316961 has 16 divisors (see below), whose sum is σ = 35843328. Its totient is φ = 15840000.

The previous prime is 25316957. The next prime is 25316983. The reversal of 25316961 is 16961352.

It is a happy number.

It is not a de Polignac number, because 25316961 - 2² = 25316957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25316461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33336 + ... + 34086.

It is an arithmetic number, because the mean of its divisors is an integer number (2240208).

Almost surely, 2^25316961 is an apocalyptic number.

It is an amenable number.

25316961 is a deficient number, since it is larger than the sum of its proper divisors (10526367).

25316961 is a wasteful number, since it uses less digits than its factorization.

25316961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432.

The product of its digits is 9720, while the sum is 33.

The square root of 25316961 is about 5031.5962675875. The cubic root of 25316961 is about 293.6323206913.

The spelling of 25316961 in words is "twenty-five million, three hundred sixteen thousand, nine hundred sixty-one".