42504587 has 2 divisors, whose sum is σ = 42504588. Its totient is φ = 42504586.

The previous prime is 42504563. The next prime is 42504593. The reversal of 42504587 is 78540524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42504587 - 2¹⁴ = 42488203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42504547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21252293 + 21252294.

It is an arithmetic number, because the mean of its divisors is an integer number (21252294).

Almost surely, 2^42504587 is an apocalyptic number.

42504587 is a deficient number, since it is larger than the sum of its proper divisors (1).

42504587 is an equidigital number, since it uses as much as digits as its factorization.

42504587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 42504587 is about 6519.5542025510. The cubic root of 42504587 is about 348.9891568403.

The spelling of 42504587 in words is "forty-two million, five hundred four thousand, five hundred eighty-seven".