13023525225 has 24 divisors (see below), whose sum is σ = 21537148320. Its totient is φ = 6944293120.

The previous prime is 13023525209. The next prime is 13023525271. The reversal of 13023525225 is 52252532031.

It is not a de Polignac number, because 13023525225 - 2⁴ = 13023525209 is a prime.

It is a super-2 number, since 2×13023525225² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13023525192 and 13023525201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 358342 + ... + 393008.

It is an arithmetic number, because the mean of its divisors is an integer number (897381180).

Almost surely, 2^13023525225 is an apocalyptic number.

13023525225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13023525225 is a deficient number, since it is larger than the sum of its proper divisors (8513623095).

13023525225 is a wasteful number, since it uses less digits than its factorization.

13023525225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39689 (or 39684 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 13023525225 in words is "thirteen billion, twenty-three million, five hundred twenty-five thousand, two hundred twenty-five".