55245312 has 120 divisors (see below), whose sum is σ = 168099360. Its totient is φ = 17418240.

The previous prime is 55245271. The next prime is 55245341. The reversal of 55245312 is 21354255.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87237 + ... + 87867.

It is an arithmetic number, because the mean of its divisors is an integer number (1400828).

Almost surely, 2^55245312 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 55245312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84049680).

55245312 is an abundant number, since it is smaller than the sum of its proper divisors (112854048).

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

55245312 is a wasteful number, since it uses less digits than its factorization.

55245312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 655 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 55245312 is about 7432.7190179637. The cubic root of 55245312 is about 380.8598074742.

Adding to 55245312 its reverse (21354255), we get a palindrome (76599567).

The spelling of 55245312 in words is "fifty-five million, two hundred forty-five thousand, three hundred twelve".