55784173244 has 6 divisors (see below), whose sum is σ = 97622303184. Its totient is φ = 27892086620.

The previous prime is 55784173219. The next prime is 55784173253. The reversal of 55784173244 is 44237148755.

It is a super-2 number, since 2×55784173244² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55784173192 and 55784173201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973021652 + ... + 6973021659.

It is an arithmetic number, because the mean of its divisors is an integer number (16270383864).

Almost surely, 2^55784173244 is an apocalyptic number.

It is an amenable number.

55784173244 is a deficient number, since it is larger than the sum of its proper divisors (41838129940).

55784173244 is a wasteful number, since it uses less digits than its factorization.

55784173244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13946043315 (or 13946043313 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 50.

The spelling of 55784173244 in words is "fifty-five billion, seven hundred eighty-four million, one hundred seventy-three thousand, two hundred forty-four".