42536511 has 6 divisors (see below), whose sum is σ = 61441640. Its totient is φ = 28357668.

The previous prime is 42536509. The next prime is 42536519. The reversal of 42536511 is 11563524.

42536511 is a `hidden beast` number, since 4 + 2 + 5 + 3 + 651 + 1 = 666.

42536511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42536511 - 2¹ = 42536509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42536519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2363131 + ... + 2363148.

Almost surely, 2^42536511 is an apocalyptic number.

42536511 is a deficient number, since it is larger than the sum of its proper divisors (18905129).

42536511 is a wasteful number, since it uses less digits than its factorization.

42536511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726285 (or 4726282 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 42536511 is about 6522.0020699169. The cubic root of 42536511 is about 349.0765069557.

Subtracting from 42536511 its sum of digits (27), we obtain a square (42536484 = 6522²).

The spelling of 42536511 in words is "forty-two million, five hundred thirty-six thousand, five hundred eleven".