42056299997 has 2 divisors, whose sum is σ = 42056299998. Its totient is φ = 42056299996.

The previous prime is 42056299939. The next prime is 42056300053. The reversal of 42056299997 is 79999265024.

42056299997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21599005156 + 20457294841 = 146966^2 + 143029^2 .

It is a cyclic number.

It is not a de Polignac number, because 42056299997 - 2²⁴ = 42039522781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42056299097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21028149998 + 21028149999.

It is an arithmetic number, because the mean of its divisors is an integer number (21028149999).

Almost surely, 2^42056299997 is an apocalyptic number.

It is an amenable number.

42056299997 is a deficient number, since it is larger than the sum of its proper divisors (1).

42056299997 is an equidigital number, since it uses as much as digits as its factorization.

42056299997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 42056299997 in words is "forty-two billion, fifty-six million, two hundred ninety-nine thousand, nine hundred ninety-seven".