55332550 has 48 divisors (see below), whose sum is σ = 126679392. Its totient is φ = 17510400.

The previous prime is 55332539. The next prime is 55332559. The reversal of 55332550 is 5523355.

55332550 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 (55332559) 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 23 ways as a sum of consecutive naturals, for example, 1531 + ... + 10630.

It is an arithmetic number, because the mean of its divisors is an integer number (2639154).

Almost surely, 2^55332550 is an apocalyptic number.

55332550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55332550 is an abundant number, since it is smaller than the sum of its proper divisors (71346842).

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

55332550 is a wasteful number, since it uses less digits than its factorization.

55332550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12193 (or 12188 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 28.

The square root of 55332550 is about 7438.5852149451. The cubic root of 55332550 is about 381.0601742457.

The spelling of 55332550 in words is "fifty-five million, three hundred thirty-two thousand, five hundred fifty".