40520004587 has 2 divisors, whose sum is σ = 40520004588. Its totient is φ = 40520004586.

The previous prime is 40520004493. The next prime is 40520004589. The reversal of 40520004587 is 78540002504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40520004587 - 2¹⁶ = 40519939051 is a prime.

Together with 40520004589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40520004589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20260002293 + 20260002294.

It is an arithmetic number, because the mean of its divisors is an integer number (20260002294).

Almost surely, 2^40520004587 is an apocalyptic number.

40520004587 is a deficient number, since it is larger than the sum of its proper divisors (1).

40520004587 is an equidigital number, since it uses as much as digits as its factorization.

40520004587 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 spelling of 40520004587 in words is "forty billion, five hundred twenty million, four thousand, five hundred eighty-seven".