42015275 has 12 divisors (see below), whose sum is σ = 52954944. Its totient is φ = 33060000.

The previous prime is 42015271. The next prime is 42015277. The reversal of 42015275 is 57251024.

It is not a de Polignac number, because 42015275 - 2² = 42015271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42015271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12251 + ... + 15300.

It is an arithmetic number, because the mean of its divisors is an integer number (4412912).

Almost surely, 2^42015275 is an apocalyptic number.

42015275 is a deficient number, since it is larger than the sum of its proper divisors (10939669).

42015275 is a wasteful number, since it uses less digits than its factorization.

42015275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27622 (or 27617 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 42015275 is about 6481.9190831111. The cubic root of 42015275 is about 347.6447993072.

Adding to 42015275 its reverse (57251024), we get a palindrome (99266299).

The spelling of 42015275 in words is "forty-two million, fifteen thousand, two hundred seventy-five".