55681343 has 8 divisors (see below), whose sum is σ = 58731120. Its totient is φ = 52643520.

The previous prime is 55681331. The next prime is 55681357. The reversal of 55681343 is 34318655.

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 55681343 - 2⁶ = 55681279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55681303) 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, 7571 + ... + 12987.

It is an arithmetic number, because the mean of its divisors is an integer number (7341390).

Almost surely, 2^55681343 is an apocalyptic number.

55681343 is a deficient number, since it is larger than the sum of its proper divisors (3049777).

55681343 is a wasteful number, since it uses less digits than its factorization.

55681343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977.

The product of its digits is 43200, while the sum is 35.

The square root of 55681343 is about 7461.9932323743. The cubic root of 55681343 is about 381.8591784692.

Adding to 55681343 its reverse (34318655), we get a palindrome (89999998).

The spelling of 55681343 in words is "fifty-five million, six hundred eighty-one thousand, three hundred forty-three".