13454664225 has 48 divisors (see below), whose sum is σ = 22493203200. Its totient is φ = 7096069120.

The previous prime is 13454664221. The next prime is 13454664233. The reversal of 13454664225 is 52246645431.

It is a happy number.

It is not a de Polignac number, because 13454664225 - 2² = 13454664221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13454664221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4312216 + ... + 4315334.

It is an arithmetic number, because the mean of its divisors is an integer number (468608400).

Almost surely, 2^13454664225 is an apocalyptic number.

13454664225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13454664225 is a deficient number, since it is larger than the sum of its proper divisors (9038538975).

13454664225 is a wasteful number, since it uses less digits than its factorization.

13454664225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754 (or 3749 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The spelling of 13454664225 in words is "thirteen billion, four hundred fifty-four million, six hundred sixty-four thousand, two hundred twenty-five".