25265803 has 4 divisors (see below), whose sum is σ = 25502040. Its totient is φ = 25029568.

The previous prime is 25265771. The next prime is 25265809. The reversal of 25265803 is 30856252.

It is a happy number.

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 25265803 - 2⁵ = 25265771 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25265809) 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, 117958 + ... + 118171.

It is an arithmetic number, because the mean of its divisors is an integer number (6375510).

Almost surely, 2^25265803 is an apocalyptic number.

25265803 is a deficient number, since it is larger than the sum of its proper divisors (236237).

25265803 is a wasteful number, since it uses less digits than its factorization.

25265803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236236.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 25265803 is about 5026.5100218740. The cubic root of 25265803 is about 293.4344063140.

The spelling of 25265803 in words is "twenty-five million, two hundred sixty-five thousand, eight hundred three".