25287203 has 4 divisors (see below), whose sum is σ = 25523640. Its totient is φ = 25050768.

The previous prime is 25287193. The next prime is 25287209. The reversal of 25287203 is 30278252.

25287203 is nontrivially palindromic in base 7.

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 25287203 - 2¹⁰ = 25286179 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (25287209) 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 3 ways as a sum of consecutive naturals, for example, 118058 + ... + 118271.

It is an arithmetic number, because the mean of its divisors is an integer number (6380910).

Almost surely, 2^25287203 is an apocalyptic number.

25287203 is a deficient number, since it is larger than the sum of its proper divisors (236437).

25287203 is a wasteful number, since it uses less digits than its factorization.

25287203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236436.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 25287203 is about 5028.6382848640. The cubic root of 25287203 is about 293.5172287259.

The spelling of 25287203 in words is "twenty-five million, two hundred eighty-seven thousand, two hundred three".