25190205 has 16 divisors (see below), whose sum is σ = 40384320. Its totient is φ = 13408128.

The previous prime is 25190203. The next prime is 25190213. The reversal of 25190205 is 50209152.

It is not a de Polignac number, because 25190205 - 2¹ = 25190203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25190203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7929 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (2524020).

Almost surely, 2^25190205 is an apocalyptic number.

It is an amenable number.

25190205 is a deficient number, since it is larger than the sum of its proper divisors (15194115).

25190205 is a wasteful number, since it uses less digits than its factorization.

25190205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 25190205 is about 5018.9844590315. The cubic root of 25190205 is about 293.1414515008.

Adding to 25190205 its reverse (50209152), we get a palindrome (75399357).

The spelling of 25190205 in words is "twenty-five million, one hundred ninety thousand, two hundred five".