55429967583 has 24 divisors (see below), whose sum is σ = 81328364208. Its totient is φ = 36371377152.

The previous prime is 55429967531. The next prime is 55429967587. The reversal of 55429967583 is 38576992455.

55429967583 is a `hidden beast` number, since 5 + 5 + 42 + 9 + 9 + 6 + 7 + 583 = 666.

It is not a de Polignac number, because 55429967583 - 2⁶ = 55429967519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55429967583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55429967587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 696085 + ... + 771617.

It is an arithmetic number, because the mean of its divisors is an integer number (3388681842).

Almost surely, 2^55429967583 is an apocalyptic number.

55429967583 is a deficient number, since it is larger than the sum of its proper divisors (25898396625).

55429967583 is a wasteful number, since it uses less digits than its factorization.

55429967583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76823 (or 76820 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The spelling of 55429967583 in words is "fifty-five billion, four hundred twenty-nine million, nine hundred sixty-seven thousand, five hundred eighty-three".