55009345222720 has 56 divisors (see below), whose sum is σ = 149704003790784. Its totient is φ = 18860346932736.

The previous prime is 55009345222697. The next prime is 55009345222723. The reversal of 55009345222720 is 2722254390055.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (55009345222723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12278869462 + ... + 12278873941.

Almost surely, 2^{55009345222720} is an apocalyptic number.

It is an amenable number.

55009345222720 is an abundant number, since it is smaller than the sum of its proper divisors (94694658568064).

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

55009345222720 is a wasteful number, since it uses less digits than its factorization.

55009345222720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24557743427 (or 24557743417 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 46.

The spelling of 55009345222720 in words is "fifty-five trillion, nine billion, three hundred forty-five million, two hundred twenty-two thousand, seven hundred twenty".