55688983 has 4 divisors (see below), whose sum is σ = 63644560. Its totient is φ = 47733408.

The previous prime is 55688977. The next prime is 55689013. The reversal of 55688983 is 38988655.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55688983 - 2¹³ = 55680791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55688983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55688953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3977778 + ... + 3977791.

It is an arithmetic number, because the mean of its divisors is an integer number (15911140).

Almost surely, 2^55688983 is an apocalyptic number.

55688983 is a deficient number, since it is larger than the sum of its proper divisors (7955577).

55688983 is an equidigital number, since it uses as much as digits as its factorization.

55688983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7955576.

The product of its digits is 2073600, while the sum is 52.

The square root of 55688983 is about 7462.5051423768. The cubic root of 55688983 is about 381.8766425517.

The spelling of 55688983 in words is "fifty-five million, six hundred eighty-eight thousand, nine hundred eighty-three".