25511113 has 2 divisors, whose sum is σ = 25511114. Its totient is φ = 25511112.

The previous prime is 25511107. The next prime is 25511149. The reversal of 25511113 is 31111552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20684304 + 4826809 = 4548^2 + 2197^2 .

It is a cyclic number.

It is not a de Polignac number, because 25511113 - 2²¹ = 23413961 is a prime.

It is not a weakly prime, because it can be changed into another prime (25511413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12755556 + 12755557.

It is an arithmetic number, because the mean of its divisors is an integer number (12755557).

Almost surely, 2^25511113 is an apocalyptic number.

It is an amenable number.

25511113 is a deficient number, since it is larger than the sum of its proper divisors (1).

25511113 is an equidigital number, since it uses as much as digits as its factorization.

25511113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150, while the sum is 19.

The square root of 25511113 is about 5050.8527002873. The cubic root of 25511113 is about 294.3810175578.

Adding to 25511113 its reverse (31111552), we get a palindrome (56622665).

The spelling of 25511113 in words is "twenty-five million, five hundred eleven thousand, one hundred thirteen".