55091983649 has 8 divisors (see below), whose sum is σ = 55322974080. Its totient is φ = 54861156736.

The previous prime is 55091983631. The next prime is 55091983663. The reversal of 55091983649 is 94638919055.

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 55091983649 - 2⁸ = 55091983393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55091983619) 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, 659372 + ... + 738210.

It is an arithmetic number, because the mean of its divisors is an integer number (6915371760).

Almost surely, 2^55091983649 is an apocalyptic number.

It is an amenable number.

55091983649 is a deficient number, since it is larger than the sum of its proper divisors (230990431).

55091983649 is a wasteful number, since it uses less digits than its factorization.

55091983649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81759.

The product of its (nonzero) digits is 10497600, while the sum is 59.

The spelling of 55091983649 in words is "fifty-five billion, ninety-one million, nine hundred eighty-three thousand, six hundred forty-nine".