55784832347 has 16 divisors (see below), whose sum is σ = 58181760000. Its totient is φ = 53439408960.

The previous prime is 55784832343. The next prime is 55784832349. The reversal of 55784832347 is 74323848755.

It is a cyclic number.

It is not a de Polignac number, because 55784832347 - 2² = 55784832343 is a prime.

It is a super-2 number, since 2×55784832347² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55784832292 and 55784832301.

It is not an unprimeable number, because it can be changed into a prime (55784832343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2132654 + ... + 2158652.

It is an arithmetic number, because the mean of its divisors is an integer number (3636360000).

Almost surely, 2^55784832347 is an apocalyptic number.

55784832347 is a deficient number, since it is larger than the sum of its proper divisors (2396927653).

55784832347 is a wasteful number, since it uses less digits than its factorization.

55784832347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26986.

The product of its digits is 22579200, while the sum is 56.

The spelling of 55784832347 in words is "fifty-five billion, seven hundred eighty-four million, eight hundred thirty-two thousand, three hundred forty-seven".