42502835497 has 2 divisors, whose sum is σ = 42502835498. Its totient is φ = 42502835496.

The previous prime is 42502835491. The next prime is 42502835513. The reversal of 42502835497 is 79453820524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28402697961 + 14100137536 = 168531^2 + 118744^2 .

It is a cyclic number.

It is not a de Polignac number, because 42502835497 - 2¹¹ = 42502833449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42502835497.

It is not a weakly prime, because it can be changed into another prime (42502835491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21251417748 + 21251417749.

It is an arithmetic number, because the mean of its divisors is an integer number (21251417749).

Almost surely, 2^42502835497 is an apocalyptic number.

It is an amenable number.

42502835497 is a deficient number, since it is larger than the sum of its proper divisors (1).

42502835497 is an equidigital number, since it uses as much as digits as its factorization.

42502835497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 42502835497 in words is "forty-two billion, five hundred two million, eight hundred thirty-five thousand, four hundred ninety-seven".