56243771 has 4 divisors (see below), whose sum is σ = 56259000. Its totient is φ = 56228544.

The previous prime is 56243767. The next prime is 56243773. The reversal of 56243771 is 17734265.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56243771 - 2² = 56243767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56243773) 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, 1835 + ... + 10763.

It is an arithmetic number, because the mean of its divisors is an integer number (14064750).

Almost surely, 2^56243771 is an apocalyptic number.

56243771 is a deficient number, since it is larger than the sum of its proper divisors (15229).

56243771 is an equidigital number, since it uses as much as digits as its factorization.

56243771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15228.

The product of its digits is 35280, while the sum is 35.

The square root of 56243771 is about 7499.5847218363. The cubic root of 56243771 is about 383.1405724407.

The spelling of 56243771 in words is "fifty-six million, two hundred forty-three thousand, seven hundred seventy-one".