23955507225 has 36 divisors (see below), whose sum is σ = 46207517356. Its totient is φ = 11793479040.

The previous prime is 23955507223. The next prime is 23955507241. The reversal of 23955507225 is 52270555932.

23955507225 is a `hidden beast` number, since 2 + 3 + 9 + 5 + 550 + 72 + 25 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 5646169881 + 18309337344 = 75141^2 + 135312^2 .

It is not a de Polignac number, because 23955507225 - 2¹ = 23955507223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23955507223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4092034 + ... + 4097883.

Almost surely, 2^23955507225 is an apocalyptic number.

23955507225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23955507225 is a deficient number, since it is larger than the sum of its proper divisors (22252010131).

23955507225 is a wasteful number, since it uses less digits than its factorization.

23955507225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189946 (or 8189938 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 45.

The spelling of 23955507225 in words is "twenty-three billion, nine hundred fifty-five million, five hundred seven thousand, two hundred twenty-five".