42518011 has 2 divisors, whose sum is σ = 42518012. Its totient is φ = 42518010.

The previous prime is 42517997. The next prime is 42518027. The reversal of 42518011 is 11081524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42518011 - 2⁷ = 42517883 is a prime.

It is a super-2 number, since 2×42518011² = 3615562518792242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42518041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21259005 + 21259006.

It is an arithmetic number, because the mean of its divisors is an integer number (21259006).

Almost surely, 2^42518011 is an apocalyptic number.

42518011 is a deficient number, since it is larger than the sum of its proper divisors (1).

42518011 is an equidigital number, since it uses as much as digits as its factorization.

42518011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 42518011 is about 6520.5836395218. The cubic root of 42518011 is about 349.0258927760.

Adding to 42518011 its reverse (11081524), we get a palindrome (53599535).

The spelling of 42518011 in words is "forty-two million, five hundred eighteen thousand, eleven".