23081825 has 48 divisors (see below), whose sum is σ = 33331200. Its totient is φ = 15724800.

The previous prime is 23081819. The next prime is 23081831. The reversal of 23081825 is 52818032.

It is an interprime number because it is at equal distance from previous prime (23081819) and next prime (23081831).

It is not a de Polignac number, because 23081825 - 2⁶ = 23081761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 292136 + ... + 292214.

It is an arithmetic number, because the mean of its divisors is an integer number (694400).

Almost surely, 2^23081825 is an apocalyptic number.

23081825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23081825 is a deficient number, since it is larger than the sum of its proper divisors (10249375).

23081825 is a wasteful number, since it uses less digits than its factorization.

23081825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 23081825 is about 4804.3547953914. The cubic root of 23081825 is about 284.7235443744.

Adding to 23081825 its reverse (52818032), we get a palindrome (75899857).

The spelling of 23081825 in words is "twenty-three million, eighty-one thousand, eight hundred twenty-five".