25505127 has 6 divisors (see below), whose sum is σ = 36840752. Its totient is φ = 17003412.

The previous prime is 25505111. The next prime is 25505159. The reversal of 25505127 is 72150552.

It is a happy number.

It is not a de Polignac number, because 25505127 - 2⁴ = 25505111 is a prime.

It is a super-2 number, since 2×25505127² = 1301023006572258, which contains 22 as substring.

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 25505127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25505167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1416943 + ... + 1416960.

Almost surely, 2^25505127 is an apocalyptic number.

25505127 is a deficient number, since it is larger than the sum of its proper divisors (11335625).

25505127 is a wasteful number, since it uses less digits than its factorization.

25505127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833909 (or 2833906 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 25505127 is about 5050.2600923121. The cubic root of 25505127 is about 294.3579909574.

Adding to 25505127 its reverse (72150552), we get a palindrome (97655679).

The spelling of 25505127 in words is "twenty-five million, five hundred five thousand, one hundred twenty-seven".