25320203 has 8 divisors (see below), whose sum is σ = 25623840. Its totient is φ = 25018560.

The previous prime is 25320199. The next prime is 25320209. The reversal of 25320203 is 30202352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25320203 - 2² = 25320199 is a prime.

It is a super-2 number, since 2×25320203² = 1282225359922418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25320209) 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 7 ways as a sum of consecutive naturals, for example, 57458 + ... + 57896.

It is an arithmetic number, because the mean of its divisors is an integer number (3202980).

Almost surely, 2^25320203 is an apocalyptic number.

25320203 is a deficient number, since it is larger than the sum of its proper divisors (303637).

25320203 is a wasteful number, since it uses less digits than its factorization.

25320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 25320203 is about 5031.9184214373. The cubic root of 25320203 is about 293.6448539933.

Adding to 25320203 its reverse (30202352), we get a palindrome (55522555).

The spelling of 25320203 in words is "twenty-five million, three hundred twenty thousand, two hundred three".