55573729938841 has 3 divisors (see below), whose sum is σ = 55573737393621. Its totient is φ = 55573722484062.

The previous prime is 55573729938821. The next prime is 55573729938847. The reversal of 55573729938841 is 14883992737555.

The square root of 55573729938841 is 7454779.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 55573729938841 - 2¹⁷ = 55573729807769 is a prime.

It is a super-3 number, since 3×55573729938841³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55573729938847) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3727390 + ... + 11182168.

It is an arithmetic number, because the mean of its divisors is an integer number (18524579131207).

Almost surely, 2^{55573729938841} is an apocalyptic number.

55573729938841 is the 7454779-th square number.

55573729938841 is the 3727390-th centered octagonal number.

It is an amenable number.

55573729938841 is a deficient number, since it is larger than the sum of its proper divisors (7454780).

55573729938841 is an frugal number, since it uses more digits than its factorization.

55573729938841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14909558 (or 7454779 counting only the distinct ones).

The product of its digits is 2286144000, while the sum is 76.

The spelling of 55573729938841 in words is "fifty-five trillion, five hundred seventy-three billion, seven hundred twenty-nine million, nine hundred thirty-eight thousand, eight hundred forty-one".