25492231 has 8 divisors (see below), whose sum is σ = 27073440. Its totient is φ = 23920128.

The previous prime is 25492213. The next prime is 25492237. The reversal of 25492231 is 13229452.

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 25492231 - 2¹⁷ = 25361159 is a prime.

It is a super-2 number, since 2×25492231² = 1299707682714722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25492231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25492237) 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 7 ways as a sum of consecutive naturals, for example, 4015 + ... + 8191.

It is an arithmetic number, because the mean of its divisors is an integer number (3384180).

Almost surely, 2^25492231 is an apocalyptic number.

25492231 is a deficient number, since it is larger than the sum of its proper divisors (1581209).

25492231 is a wasteful number, since it uses less digits than its factorization.

25492231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553.

The product of its digits is 4320, while the sum is 28.

The square root of 25492231 is about 5048.9831649551. The cubic root of 25492231 is about 294.3083711219.

The spelling of 25492231 in words is "twenty-five million, four hundred ninety-two thousand, two hundred thirty-one".