55947143 has 8 divisors (see below), whose sum is σ = 64125600. Its totient is φ = 47815200.

The previous prime is 55947139. The next prime is 55947169. The reversal of 55947143 is 34174955.

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 55947143 - 2² = 55947139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55947097 and 55947106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55947103) 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, 9008 + ... + 13893.

It is an arithmetic number, because the mean of its divisors is an integer number (8015700).

Almost surely, 2^55947143 is an apocalyptic number.

55947143 is a deficient number, since it is larger than the sum of its proper divisors (8178457).

55947143 is a wasteful number, since it uses less digits than its factorization.

55947143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23257.

The product of its digits is 75600, while the sum is 38.

The square root of 55947143 is about 7479.7822829278. The cubic root of 55947143 is about 382.4658274681.

The spelling of 55947143 in words is "fifty-five million, nine hundred forty-seven thousand, one hundred forty-three".