56993143 has 2 divisors, whose sum is σ = 56993144. Its totient is φ = 56993142.

The previous prime is 56993137. The next prime is 56993161. The reversal of 56993143 is 34139965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56993143 - 2¹³ = 56984951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56993096 and 56993105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56993243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28496571 + 28496572.

It is an arithmetic number, because the mean of its divisors is an integer number (28496572).

Almost surely, 2^56993143 is an apocalyptic number.

56993143 is a deficient number, since it is larger than the sum of its proper divisors (1).

56993143 is an equidigital number, since it uses as much as digits as its factorization.

56993143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 40.

The square root of 56993143 is about 7549.3803056940. The cubic root of 56993143 is about 384.8346802443.

The spelling of 56993143 in words is "fifty-six million, nine hundred ninety-three thousand, one hundred forty-three".