42015263 has 2 divisors, whose sum is σ = 42015264. Its totient is φ = 42015262.

The previous prime is 42015247. The next prime is 42015269. The reversal of 42015263 is 36251024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42015263 - 2⁴ = 42015247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42015269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21007631 + 21007632.

It is an arithmetic number, because the mean of its divisors is an integer number (21007632).

Almost surely, 2^42015263 is an apocalyptic number.

42015263 is a deficient number, since it is larger than the sum of its proper divisors (1).

42015263 is an equidigital number, since it uses as much as digits as its factorization.

42015263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 42015263 is about 6481.9181574593. The cubic root of 42015263 is about 347.6447662102.

Adding to 42015263 its reverse (36251024), we get a palindrome (78266287).

The spelling of 42015263 in words is "forty-two million, fifteen thousand, two hundred sixty-three".