42558773 has 2 divisors, whose sum is σ = 42558774. Its totient is φ = 42558772.

The previous prime is 42558757. The next prime is 42558799. The reversal of 42558773 is 37785524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31114084 + 11444689 = 5578^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 42558773 - 2⁴ = 42558757 is a prime.

It is a super-2 number, since 2×42558773² = 3622498318531058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42558773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42558743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21279386 + 21279387.

It is an arithmetic number, because the mean of its divisors is an integer number (21279387).

Almost surely, 2^42558773 is an apocalyptic number.

It is an amenable number.

42558773 is a deficient number, since it is larger than the sum of its proper divisors (1).

42558773 is an equidigital number, since it uses as much as digits as its factorization.

42558773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 41.

The square root of 42558773 is about 6523.7085311960. The cubic root of 42558773 is about 349.1373941457.

The spelling of 42558773 in words is "forty-two million, five hundred fifty-eight thousand, seven hundred seventy-three".