25851161 has 8 divisors (see below), whose sum is σ = 29575104. Its totient is φ = 22134960.

The previous prime is 25851143. The next prime is 25851173. The reversal of 25851161 is 16115852.

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

It is a cyclic number.

It is not a de Polignac number, because 25851161 - 2¹⁸ = 25589017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25851131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11066 + ... + 13196.

It is an arithmetic number, because the mean of its divisors is an integer number (3696888).

Almost surely, 2^25851161 is an apocalyptic number.

It is an amenable number.

25851161 is a deficient number, since it is larger than the sum of its proper divisors (3723943).

25851161 is a wasteful number, since it uses less digits than its factorization.

25851161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871.

The product of its digits is 2400, while the sum is 29.

The square root of 25851161 is about 5084.4037015170. The cubic root of 25851161 is about 295.6832234726.

The spelling of 25851161 in words is "twenty-five million, eight hundred fifty-one thousand, one hundred sixty-one".