25285983 has 4 divisors (see below), whose sum is σ = 33714648. Its totient is φ = 16857320.

The previous prime is 25285969. The next prime is 25286003. The reversal of 25285983 is 38958252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25285983 - 2⁹ = 25285471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25285943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4214328 + ... + 4214333.

It is an arithmetic number, because the mean of its divisors is an integer number (8428662).

Almost surely, 2^25285983 is an apocalyptic number.

25285983 is a deficient number, since it is larger than the sum of its proper divisors (8428665).

25285983 is an equidigital number, since it uses as much as digits as its factorization.

25285983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8428664.

The product of its digits is 172800, while the sum is 42.

The square root of 25285983 is about 5028.5169781955. The cubic root of 25285983 is about 293.5125083306.

The spelling of 25285983 in words is "twenty-five million, two hundred eighty-five thousand, nine hundred eighty-three".