42520047587 has 2 divisors, whose sum is σ = 42520047588. Its totient is φ = 42520047586.

The previous prime is 42520047553. The next prime is 42520047589. The reversal of 42520047587 is 78574002524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42520047587 - 2³² = 38225080291 is a prime.

Together with 42520047589, 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 (42520047589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21260023793 + 21260023794.

It is an arithmetic number, because the mean of its divisors is an integer number (21260023794).

Almost surely, 2^42520047587 is an apocalyptic number.

42520047587 is a deficient number, since it is larger than the sum of its proper divisors (1).

42520047587 is an equidigital number, since it uses as much as digits as its factorization.

42520047587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 627200, while the sum is 44.

The spelling of 42520047587 in words is "forty-two billion, five hundred twenty million, forty-seven thousand, five hundred eighty-seven".