42056783 has 2 divisors, whose sum is σ = 42056784. Its totient is φ = 42056782.

The previous prime is 42056767. The next prime is 42056803. The reversal of 42056783 is 38765024.

It is a happy number.

42056783 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42056783 - 2⁴ = 42056767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42016783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21028391 + 21028392.

It is an arithmetic number, because the mean of its divisors is an integer number (21028392).

Almost surely, 2^42056783 is an apocalyptic number.

42056783 is a deficient number, since it is larger than the sum of its proper divisors (1).

42056783 is an equidigital number, since it uses as much as digits as its factorization.

42056783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42056783 is about 6485.1201222491. The cubic root of 42056783 is about 347.7592441212.

The spelling of 42056783 in words is "forty-two million, fifty-six thousand, seven hundred eighty-three".