25600961 has 8 divisors (see below), whose sum is σ = 27457920. Its totient is φ = 23794992.

The previous prime is 25600957. The next prime is 25600973. The reversal of 25600961 is 16900652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25600961 - 2² = 25600957 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 (25600921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11705 + ... + 13718.

It is an arithmetic number, because the mean of its divisors is an integer number (3432240).

Almost surely, 2^25600961 is an apocalyptic number.

It is an amenable number.

25600961 is a deficient number, since it is larger than the sum of its proper divisors (1856959).

25600961 is a wasteful number, since it uses less digits than its factorization.

25600961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25495.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 25600961 is about 5059.7392225292. The cubic root of 25600961 is about 294.7262077141.

It can be divided in two parts, 25600 and 961, that multiplied together give a square (24601600 = 4960²).

The spelling of 25600961 in words is "twenty-five million, six hundred thousand, nine hundred sixty-one".