55354320 has 240 divisors, whose sum is σ = 222217920. Its totient is φ = 12628224.

The previous prime is 55354289. The next prime is 55354333. The reversal of 55354320 is 2345355.

It is a tau number, because it is divible by the number of its divisors (240).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105579 + ... + 106101.

It is an arithmetic number, because the mean of its divisors is an integer number (925908).

Almost surely, 2^55354320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55354320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111108960).

55354320 is an abundant number, since it is smaller than the sum of its proper divisors (166863600).

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

55354320 is a wasteful number, since it uses less digits than its factorization.

55354320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 55354320 is about 7440.0483869394. The cubic root of 55354320 is about 381.1101423765.

Adding to 55354320 its reverse (2345355), we get a palindrome (57699675).

The spelling of 55354320 in words is "fifty-five million, three hundred fifty-four thousand, three hundred twenty".