55240332 has 48 divisors (see below), whose sum is σ = 147732480. Its totient is φ = 15737472.

The previous prime is 55240321. The next prime is 55240417. The reversal of 55240332 is 23304255.

55240332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37669 + ... + 39107.

It is an arithmetic number, because the mean of its divisors is an integer number (3077760).

Almost surely, 2^55240332 is an apocalyptic number.

It is an amenable number.

55240332 is an abundant number, since it is smaller than the sum of its proper divisors (92492148).

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

55240332 is a wasteful number, since it uses less digits than its factorization.

55240332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 55240332 is about 7432.3840051494. The cubic root of 55240332 is about 380.8483631316.

Adding to 55240332 its reverse (23304255), we get a palindrome (78544587).

The spelling of 55240332 in words is "fifty-five million, two hundred forty thousand, three hundred thirty-two".