13553982 has 24 divisors (see below), whose sum is σ = 31626504. Its totient is φ = 4170384.

The previous prime is 13553959. The next prime is 13553989. The reversal of 13553982 is 28935531.

13553982 is a `hidden beast` number, since 13 + 553 + 98 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28728 + ... + 29195.

It is an arithmetic number, because the mean of its divisors is an integer number (1317771).

Almost surely, 2^13553982 is an apocalyptic number.

13553982 is an abundant number, since it is smaller than the sum of its proper divisors (18072522).

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

13553982 is a wasteful number, since it uses less digits than its factorization.

13553982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57944 (or 57941 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 13553982 is about 3681.5733049880. The cubic root of 13553982 is about 238.4271100913.

It can be divided in two parts, 13553 and 982, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 13553982 in words is "thirteen million, five hundred fifty-three thousand, nine hundred eighty-two".