56144243 has 4 divisors (see below), whose sum is σ = 56521200. Its totient is φ = 55767288.

The previous prime is 56144239. The next prime is 56144269. The reversal of 56144243 is 34244165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34244165 = 5 ⋅6848833.

It is a cyclic number.

It is not a de Polignac number, because 56144243 - 2² = 56144239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56144213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188255 + ... + 188552.

It is an arithmetic number, because the mean of its divisors is an integer number (14130300).

Almost surely, 2^56144243 is an apocalyptic number.

56144243 is a deficient number, since it is larger than the sum of its proper divisors (376957).

56144243 is a wasteful number, since it uses less digits than its factorization.

56144243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376956.

The product of its digits is 11520, while the sum is 29.

The square root of 56144243 is about 7492.9462162757. The cubic root of 56144243 is about 382.9144393677.

The spelling of 56144243 in words is "fifty-six million, one hundred forty-four thousand, two hundred forty-three".