42531535 has 16 divisors (see below), whose sum is σ = 55786752. Its totient is φ = 30988800.

The previous prime is 42531527. The next prime is 42531539. The reversal of 42531535 is 53513524.

It is not a de Polignac number, because 42531535 - 2³ = 42531527 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 (42531539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5436 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (3486672).

Almost surely, 2^42531535 is an apocalyptic number.

42531535 is a deficient number, since it is larger than the sum of its proper divisors (13255217).

42531535 is a wasteful number, since it uses less digits than its factorization.

42531535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194.

The product of its digits is 9000, while the sum is 28.

The square root of 42531535 is about 6521.6205808066. The cubic root of 42531535 is about 349.0628945523.

The spelling of 42531535 in words is "forty-two million, five hundred thirty-one thousand, five hundred thirty-five".