25285923 has 12 divisors (see below), whose sum is σ = 39333840. Its totient is φ = 15560496.

The previous prime is 25285921. The next prime is 25285927. The reversal of 25285923 is 32958252.

It is not a de Polignac number, because 25285923 - 2¹ = 25285921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25285921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107943 + ... + 108176.

It is an arithmetic number, because the mean of its divisors is an integer number (3277820).

Almost surely, 2^25285923 is an apocalyptic number.

25285923 is a deficient number, since it is larger than the sum of its proper divisors (14047917).

25285923 is a wasteful number, since it uses less digits than its factorization.

25285923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216138 (or 216135 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 25285923 is about 5028.5110122182. The cubic root of 25285923 is about 293.5122761761.

The spelling of 25285923 in words is "twenty-five million, two hundred eighty-five thousand, nine hundred twenty-three".