55058576221 has 16 divisors (see below), whose sum is σ = 60437301120. Its totient is φ = 49742622720.

The previous prime is 55058576207. The next prime is 55058576239. The reversal of 55058576221 is 12267585055.

It is a cyclic number.

It is not a de Polignac number, because 55058576221 - 2¹³ = 55058568029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55058516221) 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, 2129256 + ... + 2154958.

It is an arithmetic number, because the mean of its divisors is an integer number (3777331320).

Almost surely, 2^55058576221 is an apocalyptic number.

It is an amenable number.

55058576221 is a deficient number, since it is larger than the sum of its proper divisors (5378724899).

55058576221 is a wasteful number, since it uses less digits than its factorization.

55058576221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26916.

The product of its (nonzero) digits is 840000, while the sum is 46.

The spelling of 55058576221 in words is "fifty-five billion, fifty-eight million, five hundred seventy-six thousand, two hundred twenty-one".