42515411 has 2 divisors, whose sum is σ = 42515412. Its totient is φ = 42515410.

The previous prime is 42515399. The next prime is 42515437. The reversal of 42515411 is 11451524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42515411 - 2¹⁰ = 42514387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42515441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21257705 + 21257706.

It is an arithmetic number, because the mean of its divisors is an integer number (21257706).

Almost surely, 2^42515411 is an apocalyptic number.

42515411 is a deficient number, since it is larger than the sum of its proper divisors (1).

42515411 is an equidigital number, since it uses as much as digits as its factorization.

42515411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 23.

The square root of 42515411 is about 6520.3842678174. The cubic root of 42515411 is about 349.0187782552.

Adding to 42515411 its reverse (11451524), we get a palindrome (53966935).

The spelling of 42515411 in words is "forty-two million, five hundred fifteen thousand, four hundred eleven".