55220232344 has 32 divisors (see below), whose sum is σ = 106508398800. Its totient is φ = 26820408960.

The previous prime is 55220232343. The next prime is 55220232359. The reversal of 55220232344 is 44323202255.

It is a self number, because there is not a number n which added to its sum of digits gives 55220232344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55220232343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32534 + ... + 333914.

Almost surely, 2^55220232344 is an apocalyptic number.

It is an amenable number.

55220232344 is a deficient number, since it is larger than the sum of its proper divisors (51288166456).

55220232344 is a wasteful number, since it uses less digits than its factorization.

55220232344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302043 (or 302039 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 55220232344 its reverse (44323202255), we get a palindrome (99543434599).

The spelling of 55220232344 in words is "fifty-five billion, two hundred twenty million, two hundred thirty-two thousand, three hundred forty-four".