25913203 has 4 divisors (see below), whose sum is σ = 27039888. Its totient is φ = 24786520.

The previous prime is 25913177. The next prime is 25913231. The reversal of 25913203 is 30231952.

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 25913203 - 2⁵ = 25913171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25913233) 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, 563308 + ... + 563353.

It is an arithmetic number, because the mean of its divisors is an integer number (6759972).

Almost surely, 2^25913203 is an apocalyptic number.

25913203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25913203 is a deficient number, since it is larger than the sum of its proper divisors (1126685).

25913203 is a wasteful number, since it uses less digits than its factorization.

25913203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126684.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 25913203 is about 5090.5012523326. The cubic root of 25913203 is about 295.9195780726.

The spelling of 25913203 in words is "twenty-five million, nine hundred thirteen thousand, two hundred three".