23115775425 has 24 divisors (see below), whose sum is σ = 39450927360. Its totient is φ = 11930721600.

The previous prime is 23115775409. The next prime is 23115775429. The reversal of 23115775425 is 52457751132.

It is a happy number.

It is not a de Polignac number, because 23115775425 - 2⁴ = 23115775409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23115775429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4968810 + ... + 4973459.

It is an arithmetic number, because the mean of its divisors is an integer number (1643788640).

Almost surely, 2^23115775425 is an apocalyptic number.

23115775425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23115775425 is a deficient number, since it is larger than the sum of its proper divisors (16335151935).

23115775425 is a wasteful number, since it uses less digits than its factorization.

23115775425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942313 (or 9942308 counting only the distinct ones).

The product of its digits is 294000, while the sum is 42.

The spelling of 23115775425 in words is "twenty-three billion, one hundred fifteen million, seven hundred seventy-five thousand, four hundred twenty-five".