25863011 has 2 divisors, whose sum is σ = 25863012. Its totient is φ = 25863010.

The previous prime is 25863007. The next prime is 25863053. The reversal of 25863011 is 11036852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25863011 - 2² = 25863007 is a prime.

It is a super-2 number, since 2×25863011² = 1337790675972242, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25863091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12931505 + 12931506.

It is an arithmetic number, because the mean of its divisors is an integer number (12931506).

Almost surely, 2^25863011 is an apocalyptic number.

25863011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25863011 is an equidigital number, since it uses as much as digits as its factorization.

25863011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 25863011 is about 5085.5688963969. The cubic root of 25863011 is about 295.7283963110.

Adding to 25863011 its reverse (11036852), we get a palindrome (36899863).

The spelling of 25863011 in words is "twenty-five million, eight hundred sixty-three thousand, eleven".