55372220055 has 40 divisors (see below), whose sum is σ = 105098658192. Its totient is φ = 27794679552.

The previous prime is 55372220051. The next prime is 55372220063. The reversal of 55372220055 is 55002227355.

It is not a de Polignac number, because 55372220055 - 2² = 55372220051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55372220051) 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 39 ways as a sum of consecutive naturals, for example, 4014337 + ... + 4028106.

Almost surely, 2^55372220055 is an apocalyptic number.

55372220055 is a deficient number, since it is larger than the sum of its proper divisors (49726438137).

55372220055 is a wasteful number, since it uses less digits than its factorization.

55372220055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042477 (or 8042468 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The spelling of 55372220055 in words is "fifty-five billion, three hundred seventy-two million, two hundred twenty thousand, fifty-five".