13553522 has 24 divisors (see below), whose sum is σ = 21882960. Its totient is φ = 6294080.

The previous prime is 13553513. The next prime is 13553537. The reversal of 13553522 is 22535531.

It is a junction number, because it is equal to n+sod(n) for n = 13553491 and 13553500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75629 + ... + 75807.

It is an arithmetic number, because the mean of its divisors is an integer number (911790).

Almost surely, 2^13553522 is an apocalyptic number.

13553522 is a deficient number, since it is larger than the sum of its proper divisors (8329438).

13553522 is a wasteful number, since it uses less digits than its factorization.

13553522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 329 counting only the distinct ones).

The product of its digits is 4500, while the sum is 26.

The square root of 13553522 is about 3681.5108311670. The cubic root of 13553522 is about 238.4244127853.

Subtracting 13553522 from its reverse (22535531), we obtain a square (8982009 = 2997²).

The spelling of 13553522 in words is "thirteen million, five hundred fifty-three thousand, five hundred twenty-two".