42255115 has 32 divisors (see below), whose sum is σ = 62705664. Its totient is φ = 26672640.

The previous prime is 42255113. The next prime is 42255131. The reversal of 42255115 is 51155224.

It is not a de Polignac number, because 42255115 - 2¹ = 42255113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42255115.

It is not an unprimeable number, because it can be changed into a prime (42255113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27210 + ... + 28720.

It is an arithmetic number, because the mean of its divisors is an integer number (1959552).

Almost surely, 2^42255115 is an apocalyptic number.

42255115 is a deficient number, since it is larger than the sum of its proper divisors (20450549).

42255115 is a wasteful number, since it uses less digits than its factorization.

42255115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587.

The product of its digits is 2000, while the sum is 25.

The square root of 42255115 is about 6500.3934496306. The cubic root of 42255115 is about 348.3050431201.

The spelling of 42255115 in words is "forty-two million, two hundred fifty-five thousand, one hundred fifteen".