25275005 has 32 divisors (see below), whose sum is σ = 37138176. Its totient is φ = 16118784.

The previous prime is 25275001. The next prime is 25275031. The reversal of 25275005 is 50057252.

It is a cyclic number.

It is not a de Polignac number, because 25275005 - 2² = 25275001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25275001) 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 31 ways as a sum of consecutive naturals, for example, 63467 + ... + 63863.

It is an arithmetic number, because the mean of its divisors is an integer number (1160568).

Almost surely, 2^25275005 is an apocalyptic number.

It is an amenable number.

25275005 is a deficient number, since it is larger than the sum of its proper divisors (11863171).

25275005 is a wasteful number, since it uses less digits than its factorization.

25275005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 25275005 is about 5027.4252853722. The cubic root of 25275005 is about 293.4700256801.

It can be divided in two parts, 252 and 75005, that added together give a palindrome (75257).

The spelling of 25275005 in words is "twenty-five million, two hundred seventy-five thousand, five".