25505135 has 8 divisors (see below), whose sum is σ = 30650400. Its totient is φ = 20374624.

The previous prime is 25505111. The next prime is 25505159. The reversal of 25505135 is 53150552.

It is an interprime number because it is at equal distance from previous prime (25505111) and next prime (25505159).

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 25505135 - 2¹⁴ = 25488751 is a prime.

It is a super-2 number, since 2×25505135² = 1301023822736450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (3831300).

Almost surely, 2^25505135 is an apocalyptic number.

25505135 is a deficient number, since it is larger than the sum of its proper divisors (5145265).

25505135 is an equidigital number, since it uses as much as digits as its factorization.

25505135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7377.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 25505135 is about 5050.2608843504. The cubic root of 25505135 is about 294.3580217338.

Adding to 25505135 its reverse (53150552), we get a palindrome (78655687).

The spelling of 25505135 in words is "twenty-five million, five hundred five thousand, one hundred thirty-five".