55051203321213 has 8 divisors (see below), whose sum is σ = 80074477558176. Its totient is φ = 33364365649200.

The previous prime is 55051203321211. The next prime is 55051203321227. The reversal of 55051203321213 is 31212330215055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55051203321213 - 2¹ = 55051203321211 is a prime.

It is a super-2 number, since 2×55051203321213² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1668218282461 = 55051203321213 / (5 + 5 + 0 + 5 + 1 + 2 + 0 + 3 + 3 + 2 + 1 + 2 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55051203321211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 834109141198 + ... + 834109141263.

It is an arithmetic number, because the mean of its divisors is an integer number (10009309694772).

Almost surely, 2^{55051203321213} is an apocalyptic number.

It is an amenable number.

55051203321213 is a deficient number, since it is larger than the sum of its proper divisors (25023274236963).

55051203321213 is a wasteful number, since it uses less digits than its factorization.

55051203321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668218282475.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 55051203321213 its reverse (31212330215055), we get a palindrome (86263533536268).

The spelling of 55051203321213 in words is "fifty-five trillion, fifty-one billion, two hundred three million, three hundred twenty-one thousand, two hundred thirteen".