13812552 has 64 divisors (see below), whose sum is σ = 41328000. Its totient is φ = 4249152.

The previous prime is 13812521. The next prime is 13812571. The reversal of 13812552 is 25521831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (645750).

Almost surely, 2^13812552 is an apocalyptic number.

13812552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13812552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20664000).

13812552 is an abundant number, since it is smaller than the sum of its proper divisors (27515448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13812552 is a wasteful number, since it uses less digits than its factorization.

13812552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4947 (or 4937 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 13812552 is about 3716.5241826201. The cubic root of 13812552 is about 239.9337317038.

The spelling of 13812552 in words is "thirteen million, eight hundred twelve thousand, five hundred fifty-two".