23225861 has 4 divisors (see below), whose sum is σ = 23316492. Its totient is φ = 23135232.

The previous prime is 23225843. The next prime is 23225863. The reversal of 23225861 is 16852232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10764961 + 12460900 = 3281^2 + 3530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23225861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23225863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44930 + ... + 45443.

It is an arithmetic number, because the mean of its divisors is an integer number (5829123).

Almost surely, 2^23225861 is an apocalyptic number.

It is an amenable number.

23225861 is a deficient number, since it is larger than the sum of its proper divisors (90631).

23225861 is an equidigital number, since it uses as much as digits as its factorization.

23225861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90630.

The product of its digits is 5760, while the sum is 29.

The square root of 23225861 is about 4819.3216327612. The cubic root of 23225861 is about 285.3145639324.

The spelling of 23225861 in words is "twenty-three million, two hundred twenty-five thousand, eight hundred sixty-one".