13553421254 has 4 divisors (see below), whose sum is σ = 20330131884. Its totient is φ = 6776710626.

The previous prime is 13553421251. The next prime is 13553421257. The reversal of 13553421254 is 45212435531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45212435531 = 17383 ⋅2600957.

It is an interprime number because it is at equal distance from previous prime (13553421251) and next prime (13553421257).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553421251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388355312 + ... + 3388355315.

It is an arithmetic number, because the mean of its divisors is an integer number (5082532971).

Almost surely, 2^13553421254 is an apocalyptic number.

13553421254 is a deficient number, since it is larger than the sum of its proper divisors (6776710630).

13553421254 is an equidigital number, since it uses as much as digits as its factorization.

13553421254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776710629.

The product of its digits is 72000, while the sum is 35.

Adding to 13553421254 its reverse (45212435531), we get a palindrome (58765856785).

The spelling of 13553421254 in words is "thirteen billion, five hundred fifty-three million, four hundred twenty-one thousand, two hundred fifty-four".