23218596225 has 288 divisors, whose sum is σ = 49162853376. Its totient is φ = 10454400000.

The previous prime is 23218596223. The next prime is 23218596241. The reversal of 23218596225 is 52269581232.

23218596225 is a `hidden beast` number, since 2 + 3 + 2 + 18 + 5 + 9 + 622 + 5 = 666.

It is not a de Polignac number, because 23218596225 - 2¹ = 23218596223 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (23218596223) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 380632695 + ... + 380632755.

It is an arithmetic number, because the mean of its divisors is an integer number (170704352).

Almost surely, 2^23218596225 is an apocalyptic number.

23218596225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23218596225 is an abundant number, since it is smaller than the sum of its proper divisors (25944257151).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23218596225 is a wasteful number, since it uses less digits than its factorization.

23218596225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 152 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 23218596225 in words is "twenty-three billion, two hundred eighteen million, five hundred ninety-six thousand, two hundred twenty-five".