13550221435 has 24 divisors (see below), whose sum is σ = 16925968800. Its totient is φ = 10413139968.

The previous prime is 13550221411. The next prime is 13550221441. The reversal of 13550221435 is 53412205531.

It is not a de Polignac number, because 13550221435 - 2²¹ = 13548124283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13550221397 and 13550221406.

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, 828699 + ... + 844891.

It is an arithmetic number, because the mean of its divisors is an integer number (705248700).

Almost surely, 2^13550221435 is an apocalyptic number.

13550221435 is a deficient number, since it is larger than the sum of its proper divisors (3375747365).

13550221435 is a wasteful number, since it uses less digits than its factorization.

13550221435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16455 (or 16426 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 13550221435 its reverse (53412205531), we get a palindrome (66962426966).

The spelling of 13550221435 in words is "thirteen billion, five hundred fifty million, two hundred twenty-one thousand, four hundred thirty-five".