56765143 has 4 divisors (see below), whose sum is σ = 57972960. Its totient is φ = 55557328.

The previous prime is 56765113. The next prime is 56765153. The reversal of 56765143 is 34156765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56765143 - 2¹³ = 56756951 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 (56765113) 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, 603838 + ... + 603931.

It is an arithmetic number, because the mean of its divisors is an integer number (14493240).

Almost surely, 2^56765143 is an apocalyptic number.

56765143 is a deficient number, since it is larger than the sum of its proper divisors (1207817).

56765143 is a wasteful number, since it uses less digits than its factorization.

56765143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207816.

The product of its digits is 75600, while the sum is 37.

The square root of 56765143 is about 7534.2645958315. The cubic root of 56765143 is about 384.3208197632.

The spelling of 56765143 in words is "fifty-six million, seven hundred sixty-five thousand, one hundred forty-three".