55009834979 has 6 divisors (see below), whose sum is σ = 60011577684. Its totient is φ = 50008233720.

The previous prime is 55009834877. The next prime is 55009835003. The reversal of 55009834979 is 97943890055.

It is not a de Polignac number, because 55009834979 - 2⁸ = 55009834723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55009834279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 742529 + ... + 813245.

It is an arithmetic number, because the mean of its divisors is an integer number (10001929614).

Almost surely, 2^55009834979 is an apocalyptic number.

55009834979 is a deficient number, since it is larger than the sum of its proper divisors (5001742705).

55009834979 is an frugal number, since it uses more digits than its factorization.

55009834979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141445 (or 70728 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 59.

It can be divided in two parts, 55009 and 834979, that added together give a palindrome (889988).

The spelling of 55009834979 in words is "fifty-five billion, nine million, eight hundred thirty-four thousand, nine hundred seventy-nine".