55009746 has 48 divisors (see below), whose sum is σ = 134383200. Its totient is φ = 16667640.

The previous prime is 55009733. The next prime is 55009763. The reversal of 55009746 is 64790055.

55009746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55009746.

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 23 ways as a sum of consecutive naturals, for example, 2325 + ... + 10743.

It is an arithmetic number, because the mean of its divisors is an integer number (2799650).

Almost surely, 2^55009746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55009746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67191600).

55009746 is an abundant number, since it is smaller than the sum of its proper divisors (79373454).

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

55009746 is a wasteful number, since it uses less digits than its factorization.

55009746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452 (or 8435 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 55009746 is about 7416.8555331758. The cubic root of 55009746 is about 380.3177075220.

It can be divided in two parts, 55009 and 746, that added together give a palindrome (55755).

The spelling of 55009746 in words is "fifty-five million, nine thousand, seven hundred forty-six".