42558371 has 2 divisors, whose sum is σ = 42558372. Its totient is φ = 42558370.

The previous prime is 42558353. The next prime is 42558377. The reversal of 42558371 is 17385524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42558371 - 2¹⁸ = 42296227 is a prime.

It is a super-2 number, since 2×42558371² = 3622429884347282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42558377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21279185 + 21279186.

It is an arithmetic number, because the mean of its divisors is an integer number (21279186).

Almost surely, 2^42558371 is an apocalyptic number.

42558371 is a deficient number, since it is larger than the sum of its proper divisors (1).

42558371 is an equidigital number, since it uses as much as digits as its factorization.

42558371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 42558371 is about 6523.6777204273. The cubic root of 42558371 is about 349.1362948528.

The spelling of 42558371 in words is "forty-two million, five hundred fifty-eight thousand, three hundred seventy-one".