42540285527 has 2 divisors, whose sum is σ = 42540285528. Its totient is φ = 42540285526.

The previous prime is 42540285509. The next prime is 42540285547. The reversal of 42540285527 is 72558204524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42540285527 - 2¹⁴ = 42540269143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42540285547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21270142763 + 21270142764.

It is an arithmetic number, because the mean of its divisors is an integer number (21270142764).

Almost surely, 2^42540285527 is an apocalyptic number.

42540285527 is a deficient number, since it is larger than the sum of its proper divisors (1).

42540285527 is an equidigital number, since it uses as much as digits as its factorization.

42540285527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896000, while the sum is 44.

The spelling of 42540285527 in words is "forty-two billion, five hundred forty million, two hundred eighty-five thousand, five hundred twenty-seven".