55013784 has 32 divisors (see below), whose sum is σ = 157182720. Its totient is φ = 15718176.

The previous prime is 55013773. The next prime is 55013789. The reversal of 55013784 is 48731055.

55013784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55013789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163564 + ... + 163899.

It is an arithmetic number, because the mean of its divisors is an integer number (4911960).

Almost surely, 2^55013784 is an apocalyptic number.

It is an amenable number.

55013784 is an abundant number, since it is smaller than the sum of its proper divisors (102168936).

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

55013784 is a wasteful number, since it uses less digits than its factorization.

55013784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327479 (or 327475 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 55013784 is about 7417.1277459674. The cubic root of 55013784 is about 380.3270130569.

The spelling of 55013784 in words is "fifty-five million, thirteen thousand, seven hundred eighty-four".