55042267672 has 64 divisors (see below), whose sum is σ = 121339794240. Its totient is φ = 22913280000.

The previous prime is 55042267597. The next prime is 55042267673. The reversal of 55042267672 is 27676224055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55042267673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1223172 + ... + 1267372.

It is an arithmetic number, because the mean of its divisors is an integer number (1895934285).

Almost surely, 2^55042267672 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 55042267672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60669897120).

55042267672 is an abundant number, since it is smaller than the sum of its proper divisors (66297526568).

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

55042267672 is a wasteful number, since it uses less digits than its factorization.

55042267672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44852 (or 44848 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 46.

The spelling of 55042267672 in words is "fifty-five billion, forty-two million, two hundred sixty-seven thousand, six hundred seventy-two".