25752405 has 16 divisors (see below), whose sum is σ = 47090304. Its totient is φ = 11772480.

The previous prime is 25752401. The next prime is 25752421. The reversal of 25752405 is 50425752.

It is not a de Polignac number, because 25752405 - 2² = 25752401 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25752401) 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 15 ways as a sum of consecutive naturals, for example, 122526 + ... + 122735.

It is an arithmetic number, because the mean of its divisors is an integer number (2943144).

Almost surely, 2^25752405 is an apocalyptic number.

It is an amenable number.

25752405 is a deficient number, since it is larger than the sum of its proper divisors (21337899).

25752405 is a wasteful number, since it uses less digits than its factorization.

25752405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245276.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 25752405 is about 5074.6827487046. The cubic root of 25752405 is about 295.3062222847.

The spelling of 25752405 in words is "twenty-five million, seven hundred fifty-two thousand, four hundred five".