13113555 has 48 divisors (see below), whose sum is σ = 26000640. Its totient is φ = 5526144.

The previous prime is 13113547. The next prime is 13113557. The reversal of 13113555 is 55531131.

It is not a de Polignac number, because 13113555 - 2³ = 13113547 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13113557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17376 + ... + 18114.

It is an arithmetic number, because the mean of its divisors is an integer number (541680).

Almost surely, 2^13113555 is an apocalyptic number.

13113555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13113555 is a deficient number, since it is larger than the sum of its proper divisors (12887085).

13113555 is a wasteful number, since it uses less digits than its factorization.

13113555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 767 counting only the distinct ones).

The product of its digits is 1125, while the sum is 24.

The square root of 13113555 is about 3621.2642819877. The cubic root of 13113555 is about 235.8161152578.

Adding to 13113555 its reverse (55531131), we get a palindrome (68644686).

The spelling of 13113555 in words is "thirteen million, one hundred thirteen thousand, five hundred fifty-five".