23015445225 has 12 divisors (see below), whose sum is σ = 38052202896. Its totient is φ = 12274904080.

The previous prime is 23015445221. The next prime is 23015445263. The reversal of 23015445225 is 52254451032.

It is a happy number.

It is not a de Polignac number, because 23015445225 - 2² = 23015445221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23015445221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153436227 + ... + 153436376.

It is an arithmetic number, because the mean of its divisors is an integer number (3171016908).

Almost surely, 2^23015445225 is an apocalyptic number.

23015445225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23015445225 is a deficient number, since it is larger than the sum of its proper divisors (15036757671).

23015445225 is a wasteful number, since it uses less digits than its factorization.

23015445225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306872616 (or 306872611 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 23015445225 its reverse (52254451032), we get a palindrome (75269896257).

The spelling of 23015445225 in words is "twenty-three billion, fifteen million, four hundred forty-five thousand, two hundred twenty-five".