55250505505303 has 4 divisors (see below), whose sum is σ = 55370354758488. Its totient is φ = 55130656252120.

The previous prime is 55250505505301. The next prime is 55250505505331. The reversal of 55250505505303 is 30350550505255.

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

It is a cyclic number.

It is not a de Polignac number, because 55250505505303 - 2¹ = 55250505505301 is a prime.

It is a super-2 number, since 2×55250505505303² (a number of 28 digits) contains 22 as substring.

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 55250505505303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250505505301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59924625901 + ... + 59924626822.

It is an arithmetic number, because the mean of its divisors is an integer number (13842588689622).

Almost surely, 2^{55250505505303} is an apocalyptic number.

55250505505303 is a deficient number, since it is larger than the sum of its proper divisors (119849253185).

55250505505303 is a wasteful number, since it uses less digits than its factorization.

55250505505303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119849253184.

The product of its (nonzero) digits is 1406250, while the sum is 43.

The spelling of 55250505505303 in words is "fifty-five trillion, two hundred fifty billion, five hundred five million, five hundred five thousand, three hundred three".