56405743 has 2 divisors, whose sum is σ = 56405744. Its totient is φ = 56405742.

The previous prime is 56405731. The next prime is 56405747. The reversal of 56405743 is 34750465.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56405743 - 2⁹ = 56405231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56405699 and 56405708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56405747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28202871 + 28202872.

It is an arithmetic number, because the mean of its divisors is an integer number (28202872).

Almost surely, 2^56405743 is an apocalyptic number.

56405743 is a deficient number, since it is larger than the sum of its proper divisors (1).

56405743 is an equidigital number, since it uses as much as digits as its factorization.

56405743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 56405743 is about 7510.3756896709. The cubic root of 56405743 is about 383.5080120511.

The spelling of 56405743 in words is "fifty-six million, four hundred five thousand, seven hundred forty-three".