55304425721 has 8 divisors (see below), whose sum is σ = 58561678080. Its totient is φ = 52047623488.

The previous prime is 55304425711. The next prime is 55304425763. The reversal of 55304425721 is 12752440355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55304425721 - 2¹⁴ = 55304409337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55304425711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159200 + ... + 368718.

It is an arithmetic number, because the mean of its divisors is an integer number (7320209760).

Almost surely, 2^55304425721 is an apocalyptic number.

It is an amenable number.

55304425721 is a deficient number, since it is larger than the sum of its proper divisors (3257252359).

55304425721 is a wasteful number, since it uses less digits than its factorization.

55304425721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225063.

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 55304425721 in words is "fifty-five billion, three hundred four million, four hundred twenty-five thousand, seven hundred twenty-one".