25016135 has 4 divisors (see below), whose sum is σ = 30019368. Its totient is φ = 20012904.

The previous prime is 25016119. The next prime is 25016143. The reversal of 25016135 is 53161052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25016135 - 2⁴ = 25016119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25016135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501609 + ... + 2501618.

It is an arithmetic number, because the mean of its divisors is an integer number (7504842).

Almost surely, 2^25016135 is an apocalyptic number.

25016135 is a deficient number, since it is larger than the sum of its proper divisors (5003233).

25016135 is an equidigital number, since it uses as much as digits as its factorization.

25016135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003232.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 25016135 is about 5001.6132397458. The cubic root of 25016135 is about 292.4646656614.

Adding to 25016135 its reverse (53161052), we get a palindrome (78177187).

The spelling of 25016135 in words is "twenty-five million, sixteen thousand, one hundred thirty-five".