42562493 has 2 divisors, whose sum is σ = 42562494. Its totient is φ = 42562492.

The previous prime is 42562477. The next prime is 42562519. The reversal of 42562493 is 39426524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42471289 + 91204 = 6517^2 + 302^2 .

It is a cyclic number.

It is not a de Polignac number, because 42562493 - 2⁴ = 42562477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42562433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21281246 + 21281247.

It is an arithmetic number, because the mean of its divisors is an integer number (21281247).

Almost surely, 2^42562493 is an apocalyptic number.

It is an amenable number.

42562493 is a deficient number, since it is larger than the sum of its proper divisors (1).

42562493 is an equidigital number, since it uses as much as digits as its factorization.

42562493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 42562493 is about 6523.9936388688. The cubic root of 42562493 is about 349.1475663787.

The spelling of 42562493 in words is "forty-two million, five hundred sixty-two thousand, four hundred ninety-three".