55021711264 has 72 divisors (see below), whose sum is σ = 117715332672. Its totient is φ = 25304198400.

The previous prime is 55021711247. The next prime is 55021711271. The reversal of 55021711264 is 46211712055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1512489 + ... + 1548439.

It is an arithmetic number, because the mean of its divisors is an integer number (1634935176).

Almost surely, 2^55021711264 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 55021711264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58857666336).

55021711264 is an abundant number, since it is smaller than the sum of its proper divisors (62693621408).

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

55021711264 is a wasteful number, since it uses less digits than its factorization.

55021711264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36270 (or 36249 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 55021711264 in words is "fifty-five billion, twenty-one million, seven hundred eleven thousand, two hundred sixty-four".