55526320 has 20 divisors (see below), whose sum is σ = 129098880. Its totient is φ = 22210496.

The previous prime is 55526311. The next prime is 55526321. The reversal of 55526320 is 2362555.

55526320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (55526321) 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 3 ways as a sum of consecutive naturals, for example, 346960 + ... + 347119.

It is an arithmetic number, because the mean of its divisors is an integer number (6454944).

Almost surely, 2^55526320 is an apocalyptic number.

It is an amenable number.

55526320 is an abundant number, since it is smaller than the sum of its proper divisors (73572560).

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

55526320 is a wasteful number, since it uses less digits than its factorization.

55526320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694092 (or 694086 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 55526320 is about 7451.5984862310. The cubic root of 55526320 is about 381.5044697265.

Adding to 55526320 its reverse (2362555), we get a palindrome (57888875).

The spelling of 55526320 in words is "fifty-five million, five hundred twenty-six thousand, three hundred twenty".