55508220373 has 4 divisors (see below), whose sum is σ = 55629683020. Its totient is φ = 55386757728.

The previous prime is 55508220371. The next prime is 55508220409. The reversal of 55508220373 is 37302280555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20412694129 + 35095526244 = 142873^2 + 187338^2 .

It is a cyclic number.

It is not a de Polignac number, because 55508220373 - 2¹ = 55508220371 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 (55508220371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60730638 + ... + 60731551.

It is an arithmetic number, because the mean of its divisors is an integer number (13907420755).

Almost surely, 2^55508220373 is an apocalyptic number.

It is an amenable number.

55508220373 is a deficient number, since it is larger than the sum of its proper divisors (121462647).

55508220373 is a wasteful number, since it uses less digits than its factorization.

55508220373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121462646.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 55508220373 in words is "fifty-five billion, five hundred eight million, two hundred twenty thousand, three hundred seventy-three".