55438361322 has 8 divisors (see below), whose sum is σ = 110876722656. Its totient is φ = 18479453772.

The previous prime is 55438361287. The next prime is 55438361323. The reversal of 55438361322 is 22316383455.

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

55438361322 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55438361323) 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, 4619863438 + ... + 4619863449.

It is an arithmetic number, because the mean of its divisors is an integer number (13859590332).

Almost surely, 2^55438361322 is an apocalyptic number.

55438361322 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55438361322 is a wasteful number, since it uses less digits than its factorization.

55438361322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239726892.

The product of its digits is 518400, while the sum is 42.

The spelling of 55438361322 in words is "fifty-five billion, four hundred thirty-eight million, three hundred sixty-one thousand, three hundred twenty-two".