13555812 has 24 divisors (see below), whose sum is σ = 31715712. Its totient is φ = 4506400.

The previous prime is 13555811. The next prime is 13555813. The reversal of 13555812 is 21855531.

13555812 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13555811) and next prime (13555813).

It is a self number, because there is not a number n which added to its sum of digits gives 13555812.

It is not an unprimeable number, because it can be changed into a prime (13555811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3862 + ... + 6482.

It is an arithmetic number, because the mean of its divisors is an integer number (1321488).

Almost surely, 2^13555812 is an apocalyptic number.

13555812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13555812 is an abundant number, since it is smaller than the sum of its proper divisors (18159900).

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

13555812 is a wasteful number, since it uses less digits than its factorization.

13555812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059 (or 3057 counting only the distinct ones).

The product of its digits is 6000, while the sum is 30.

The square root of 13555812 is about 3681.8218316480. The cubic root of 13555812 is about 238.4378400740.

The spelling of 13555812 in words is "thirteen million, five hundred fifty-five thousand, eight hundred twelve".