42402583 has 2 divisors, whose sum is σ = 42402584. Its totient is φ = 42402582.

The previous prime is 42402559. The next prime is 42402587. The reversal of 42402583 is 38520424.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42402583 - 2⁵ = 42402551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42402587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21201291 + 21201292.

It is an arithmetic number, because the mean of its divisors is an integer number (21201292).

Almost surely, 2^42402583 is an apocalyptic number.

42402583 is a deficient number, since it is larger than the sum of its proper divisors (1).

42402583 is an equidigital number, since it uses as much as digits as its factorization.

42402583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 42402583 is about 6511.7265759551. The cubic root of 42402583 is about 348.7097610764.

The spelling of 42402583 in words is "forty-two million, four hundred two thousand, five hundred eighty-three".