13553006551 has 4 divisors (see below), whose sum is σ = 15489150352. Its totient is φ = 11616862752.

The previous prime is 13553006531. The next prime is 13553006561. The reversal of 13553006551 is 15560035531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15560035531 = 1873 ⋅8307547.

It is a cyclic number.

It is not a de Polignac number, because 13553006551 - 2²¹ = 13550909399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553006531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968071890 + ... + 968071903.

It is an arithmetic number, because the mean of its divisors is an integer number (3872287588).

Almost surely, 2^13553006551 is an apocalyptic number.

13553006551 is a deficient number, since it is larger than the sum of its proper divisors (1936143801).

13553006551 is an equidigital number, since it uses as much as digits as its factorization.

13553006551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936143800.

The product of its (nonzero) digits is 33750, while the sum is 34.

The spelling of 13553006551 in words is "thirteen billion, five hundred fifty-three million, six thousand, five hundred fifty-one".