56743031 has 2 divisors, whose sum is σ = 56743032. Its totient is φ = 56743030.

The previous prime is 56743021. The next prime is 56743061. The reversal of 56743031 is 13034765.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56743031 is a prime.

It is a super-2 number, since 2×56743031² = 6439543134133922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56742985 and 56743003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56743021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28371515 + 28371516.

It is an arithmetic number, because the mean of its divisors is an integer number (28371516).

Almost surely, 2^56743031 is an apocalyptic number.

56743031 is a deficient number, since it is larger than the sum of its proper divisors (1).

56743031 is an equidigital number, since it uses as much as digits as its factorization.

56743031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 56743031 is about 7532.7970236825. The cubic root of 56743031 is about 384.2709111679.

Adding to 56743031 its reverse (13034765), we get a palindrome (69777796).

The spelling of 56743031 in words is "fifty-six million, seven hundred forty-three thousand, thirty-one".