42015535 has 8 divisors (see below), whose sum is σ = 51781536. Its totient is φ = 32703840.

The previous prime is 42015527. The next prime is 42015539. The reversal of 42015535 is 53551024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42015535 - 2³ = 42015527 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 (42015539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113371 + ... + 113740.

It is an arithmetic number, because the mean of its divisors is an integer number (6472692).

Almost surely, 2^42015535 is an apocalyptic number.

42015535 is a deficient number, since it is larger than the sum of its proper divisors (9766001).

42015535 is a wasteful number, since it uses less digits than its factorization.

42015535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227153.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 42015535 is about 6481.9391388689. The cubic root of 42015535 is about 347.6455164072.

Adding to 42015535 its reverse (53551024), we get a palindrome (95566559).

The spelling of 42015535 in words is "forty-two million, fifteen thousand, five hundred thirty-five".