25273505 has 8 divisors (see below), whose sum is σ = 30421824. Its totient is φ = 20156400.

The previous prime is 25273483. The next prime is 25273517. The reversal of 25273505 is 50537252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-25273505 is a prime.

It is a Duffinian 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, 5981 + ... + 9290.

It is an arithmetic number, because the mean of its divisors is an integer number (3802728).

Almost surely, 2^25273505 is an apocalyptic number.

It is an amenable number.

25273505 is a deficient number, since it is larger than the sum of its proper divisors (5148319).

25273505 is a wasteful number, since it uses less digits than its factorization.

25273505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15607.

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 25273505 is about 5027.2761014291. The cubic root of 25273505 is about 293.4642200269.

The spelling of 25273505 in words is "twenty-five million, two hundred seventy-three thousand, five hundred five".