55393634789 has 4 divisors (see below), whose sum is σ = 55765404300. Its totient is φ = 55021865280.

The previous prime is 55393634771. The next prime is 55393634827. The reversal of 55393634789 is 98743639355.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32262266689 + 23131368100 = 179617^2 + 152090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55393634789 is a prime.

It is a super-3 number, since 3×55393634789³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55393634089) 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, 185884532 + ... + 185884829.

It is an arithmetic number, because the mean of its divisors is an integer number (13941351075).

Almost surely, 2^55393634789 is an apocalyptic number.

It is an amenable number.

55393634789 is a deficient number, since it is larger than the sum of its proper divisors (371769511).

55393634789 is a wasteful number, since it uses less digits than its factorization.

55393634789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371769510.

The product of its digits is 73483200, while the sum is 62.

The spelling of 55393634789 in words is "fifty-five billion, three hundred ninety-three million, six hundred thirty-four thousand, seven hundred eighty-nine".