55201373617 has 16 divisors (see below), whose sum is σ = 61394699520. Its totient is φ = 49310566272.

The previous prime is 55201373599. The next prime is 55201373621. The reversal of 55201373617 is 71637310255.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55201373617 - 2²⁷ = 55067155889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55201373617.

It is not an unprimeable number, because it can be changed into a prime (55201373317) 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 15 ways as a sum of consecutive naturals, for example, 453183 + ... + 561940.

It is an arithmetic number, because the mean of its divisors is an integer number (3837168720).

Almost surely, 2^55201373617 is an apocalyptic number.

It is an amenable number.

55201373617 is a deficient number, since it is larger than the sum of its proper divisors (6193325903).

55201373617 is a wasteful number, since it uses less digits than its factorization.

55201373617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015272.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 55201373617 in words is "fifty-five billion, two hundred one million, three hundred seventy-three thousand, six hundred seventeen".