55613304 has 80 divisors (see below), whose sum is σ = 164003400. Its totient is φ = 17558208.

The previous prime is 55613291. The next prime is 55613309. The reversal of 55613304 is 40331655.

55613304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55613309) 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 19 ways as a sum of consecutive naturals, for example, 10054 + ... + 14570.

Almost surely, 2^55613304 is an apocalyptic number.

55613304 is a gapful number since it is divisible by the number (54) 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 55613304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82001700).

55613304 is an abundant number, since it is smaller than the sum of its proper divisors (108390096).

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

55613304 is a wasteful number, since it uses less digits than its factorization.

55613304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554 (or 4541 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 55613304 is about 7457.4328022450. The cubic root of 55613304 is about 381.7035793347.

Adding to 55613304 its reverse (40331655), we get a palindrome (95944959).

The spelling of 55613304 in words is "fifty-five million, six hundred thirteen thousand, three hundred four".