25380231 has 16 divisors (see below), whose sum is σ = 34364160. Its totient is φ = 16660800.

The previous prime is 25380217. The next prime is 25380283. The reversal of 25380231 is 13208352.

It is not a de Polignac number, because 25380231 - 2¹¹ = 25378183 is a prime.

It is a super-2 number, since 2×25380231² = 1288312251226722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25380211) 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 15 ways as a sum of consecutive naturals, for example, 80931 + ... + 81243.

It is an arithmetic number, because the mean of its divisors is an integer number (2147760).

Almost surely, 2^25380231 is an apocalyptic number.

25380231 is a deficient number, since it is larger than the sum of its proper divisors (8983929).

25380231 is a wasteful number, since it uses less digits than its factorization.

25380231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 25380231 is about 5037.8796134882. The cubic root of 25380231 is about 293.8767241974.

Adding to 25380231 its reverse (13208352), we get a palindrome (38588583).

The spelling of 25380231 in words is "twenty-five million, three hundred eighty thousand, two hundred thirty-one".