23091825 has 12 divisors (see below), whose sum is σ = 38178608. Its totient is φ = 12315600.

The previous prime is 23091791. The next prime is 23091857. The reversal of 23091825 is 52819032.

It is a happy number.

It is not a de Polignac number, because 23091825 - 2¹⁰ = 23090801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23091792 and 23091801.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 153871 + ... + 154020.

Almost surely, 2^23091825 is an apocalyptic number.

23091825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23091825 is a deficient number, since it is larger than the sum of its proper divisors (15086783).

23091825 is a wasteful number, since it uses less digits than its factorization.

23091825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307904 (or 307899 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 23091825 is about 4805.3954051670. The cubic root of 23091825 is about 284.7646564379.

The spelling of 23091825 in words is "twenty-three million, ninety-one thousand, eight hundred twenty-five".