55784034889 has 8 divisors (see below), whose sum is σ = 64435035168. Its totient is φ = 47729655360.

The previous prime is 55784034811. The next prime is 55784034913. The reversal of 55784034889 is 98843048755.

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 55784034889 - 2²⁹ = 55247163977 is a prime.

It is a super-2 number, since 2×55784034889² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55784034809) 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, 149154987 + ... + 149155360.

It is an arithmetic number, because the mean of its divisors is an integer number (8054379396).

Almost surely, 2^55784034889 is an apocalyptic number.

It is an amenable number.

55784034889 is a deficient number, since it is larger than the sum of its proper divisors (8651000279).

55784034889 is a wasteful number, since it uses less digits than its factorization.

55784034889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298310375.

The product of its (nonzero) digits is 38707200, while the sum is 61.

The spelling of 55784034889 in words is "fifty-five billion, seven hundred eighty-four million, thirty-four thousand, eight hundred eighty-nine".