13543254225 has 18 divisors (see below), whose sum is σ = 24257473526. Its totient is φ = 7223068800.

The previous prime is 13543254223. The next prime is 13543254227. The reversal of 13543254225 is 52245234531.

13543254225 is a `hidden beast` number, since 1 + 354 + 32 + 54 + 225 = 666.

It is an interprime number because it is at equal distance from previous prime (13543254223) and next prime (13543254227).

It can be written as a sum of positive squares in 3 ways, for example, as 47320641 + 13495933584 = 6879^2 + 116172^2 .

It is not a de Polignac number, because 13543254225 - 2¹ = 13543254223 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13543254225.

It is not an unprimeable number, because it can be changed into a prime (13543254223) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30095896 + ... + 30096345.

Almost surely, 2^13543254225 is an apocalyptic number.

13543254225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13543254225 is a deficient number, since it is larger than the sum of its proper divisors (10714219301).

13543254225 is a wasteful number, since it uses less digits than its factorization.

13543254225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60192257 (or 60192249 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

Adding to 13543254225 its reverse (52245234531), we get a palindrome (65788488756).

The spelling of 13543254225 in words is "thirteen billion, five hundred forty-three million, two hundred fifty-four thousand, two hundred twenty-five".