23501220424625 has 64 divisors (see below), whose sum is σ = 31321200987648. Its totient is φ = 17562660192000.

The previous prime is 23501220424621. The next prime is 23501220424651. The reversal of 23501220424625 is 52642402210532.

It is not a de Polignac number, because 23501220424625 - 2² = 23501220424621 is a prime.

It is a super-2 number, since 2×23501220424625² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23501220424621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1267517855 + ... + 1267536395.

It is an arithmetic number, because the mean of its divisors is an integer number (489393765432).

Almost surely, 2^{23501220424625} is an apocalyptic number.

23501220424625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23501220424625 is a deficient number, since it is larger than the sum of its proper divisors (7819980563023).

23501220424625 is a wasteful number, since it uses less digits than its factorization.

23501220424625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28875 (or 28865 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 23501220424625 in words is "twenty-three trillion, five hundred one billion, two hundred twenty million, four hundred twenty-four thousand, six hundred twenty-five".