55839173381 has 8 divisors (see below), whose sum is σ = 58282661760. Its totient is φ = 53396993232.

The previous prime is 55839173347. The next prime is 55839173441. The reversal of 55839173381 is 18337193855.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55839173381 - 2¹⁰ = 55839172357 is a prime.

It is a super-2 number, since 2×55839173381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55839173281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239321 + ... + 411038.

It is an arithmetic number, because the mean of its divisors is an integer number (7285332720).

Almost surely, 2^55839173381 is an apocalyptic number.

It is an amenable number.

55839173381 is a deficient number, since it is larger than the sum of its proper divisors (2443488379).

55839173381 is a wasteful number, since it uses less digits than its factorization.

55839173381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654115.

The product of its digits is 2721600, while the sum is 53.

The spelling of 55839173381 in words is "fifty-five billion, eight hundred thirty-nine million, one hundred seventy-three thousand, three hundred eighty-one".