55212781343 has 8 divisors (see below), whose sum is σ = 56131117200. Its totient is φ = 54294871680.

The previous prime is 55212781333. The next prime is 55212781361. The reversal of 55212781343 is 34318721255.

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

It is a cyclic number.

It is not a de Polignac number, because 55212781343 - 2¹² = 55212777247 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 55212781343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55212781333) 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, 160208 + ... + 368906.

It is an arithmetic number, because the mean of its divisors is an integer number (7016389650).

Almost surely, 2^55212781343 is an apocalyptic number.

55212781343 is a deficient number, since it is larger than the sum of its proper divisors (918335857).

55212781343 is a wasteful number, since it uses less digits than its factorization.

55212781343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213097.

The product of its digits is 201600, while the sum is 41.

The spelling of 55212781343 in words is "fifty-five billion, two hundred twelve million, seven hundred eighty-one thousand, three hundred forty-three".