42501983 has 2 divisors, whose sum is σ = 42501984. Its totient is φ = 42501982.

The previous prime is 42501973. The next prime is 42501997. The reversal of 42501983 is 38910524.

42501983 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 42501983 - 2¹⁰ = 42500959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42501913) 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, 21250991 + 21250992.

It is an arithmetic number, because the mean of its divisors is an integer number (21250992).

Almost surely, 2^42501983 is an apocalyptic number.

42501983 is a deficient number, since it is larger than the sum of its proper divisors (1).

42501983 is an equidigital number, since it uses as much as digits as its factorization.

42501983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 42501983 is about 6519.3544925859. The cubic root of 42501983 is about 348.9820298736.

The spelling of 42501983 in words is "forty-two million, five hundred one thousand, nine hundred eighty-three".