25523011 has 2 divisors, whose sum is σ = 25523012. Its totient is φ = 25523010.

The previous prime is 25522979. The next prime is 25523087. The reversal of 25523011 is 11032552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25523011 - 2⁵ = 25522979 is a prime.

It is a super-2 number, since 2×25523011² = 1302848181012242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25523011.

It is not a weakly prime, because it can be changed into another prime (25523711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12761505 + 12761506.

It is an arithmetic number, because the mean of its divisors is an integer number (12761506).

Almost surely, 2^25523011 is an apocalyptic number.

25523011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25523011 is an equidigital number, since it uses as much as digits as its factorization.

25523011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25523011 is about 5052.0303839150. The cubic root of 25523011 is about 294.4267754069.

Adding to 25523011 its reverse (11032552), we get a palindrome (36555563).

The spelling of 25523011 in words is "twenty-five million, five hundred twenty-three thousand, eleven".