55713143 has 2 divisors, whose sum is σ = 55713144. Its totient is φ = 55713142.

The previous prime is 55713139. The next prime is 55713193. The reversal of 55713143 is 34131755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55713143 - 2² = 55713139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55713103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27856571 + 27856572.

It is an arithmetic number, because the mean of its divisors is an integer number (27856572).

Almost surely, 2^55713143 is an apocalyptic number.

55713143 is a deficient number, since it is larger than the sum of its proper divisors (1).

55713143 is an equidigital number, since it uses as much as digits as its factorization.

55713143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 29.

The square root of 55713143 is about 7464.1237261985. The cubic root of 55713143 is about 381.9318587739.

Adding to 55713143 its reverse (34131755), we get a palindrome (89844898).

The spelling of 55713143 in words is "fifty-five million, seven hundred thirteen thousand, one hundred forty-three".