23225515 has 8 divisors (see below), whose sum is σ = 29082528. Its totient is φ = 17772480.

The previous prime is 23225509. The next prime is 23225533. The reversal of 23225515 is 51552232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23225515 - 2³ = 23225507 is a prime.

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 23225515.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100866 + ... + 101095.

It is an arithmetic number, because the mean of its divisors is an integer number (3635316).

Almost surely, 2^23225515 is an apocalyptic number.

23225515 is a deficient number, since it is larger than the sum of its proper divisors (5857013).

23225515 is a wasteful number, since it uses less digits than its factorization.

23225515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201989.

The product of its digits is 3000, while the sum is 25.

The square root of 23225515 is about 4819.2857354591. The cubic root of 23225515 is about 285.3131471305.

Adding to 23225515 its reverse (51552232), we get a palindrome (74777747).

The spelling of 23225515 in words is "twenty-three million, two hundred twenty-five thousand, five hundred fifteen".