42508799 has 2 divisors, whose sum is σ = 42508800. Its totient is φ = 42508798.

The previous prime is 42508793. The next prime is 42508847. The reversal of 42508799 is 99780524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42508799 - 2¹⁶ = 42443263 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42508793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21254399 + 21254400.

It is an arithmetic number, because the mean of its divisors is an integer number (21254400).

Almost surely, 2^42508799 is an apocalyptic number.

42508799 is a deficient number, since it is larger than the sum of its proper divisors (1).

42508799 is an equidigital number, since it uses as much as digits as its factorization.

42508799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 42508799 is about 6519.8772227704. The cubic root of 42508799 is about 349.0006841748. Note that the first 3 decimals are identical.

The spelling of 42508799 in words is "forty-two million, five hundred eight thousand, seven hundred ninety-nine".