56505240143 has 16 divisors (see below), whose sum is σ = 61800758784. Its totient is φ = 51236328960.

The previous prime is 56505240139. The next prime is 56505240151. The reversal of 56505240143 is 34104250565.

It is a cyclic number.

It is not a de Polignac number, because 56505240143 - 2² = 56505240139 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 (56505240343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9434996 + ... + 9440982.

It is an arithmetic number, because the mean of its divisors is an integer number (3862547424).

Almost surely, 2^56505240143 is an apocalyptic number.

56505240143 is a deficient number, since it is larger than the sum of its proper divisors (5295518641).

56505240143 is a wasteful number, since it uses less digits than its factorization.

56505240143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8062.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 56505240143 in words is "fifty-six billion, five hundred five million, two hundred forty thousand, one hundred forty-three".