42255265 has 8 divisors (see below), whose sum is σ = 54606888. Its totient is φ = 31203840.

The previous prime is 42255223. The next prime is 42255287. The reversal of 42255265 is 56255224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3429904 + 38825361 = 1852^2 + 6231^2 .

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

It is not a de Polignac number, because 42255265 - 2¹⁷ = 42124193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324976 + ... + 325105.

It is an arithmetic number, because the mean of its divisors is an integer number (6825861).

Almost surely, 2^42255265 is an apocalyptic number.

It is an amenable number.

42255265 is a deficient number, since it is larger than the sum of its proper divisors (12351623).

42255265 is a wasteful number, since it uses less digits than its factorization.

42255265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650099.

The product of its digits is 24000, while the sum is 31.

The square root of 42255265 is about 6500.4049873835. The cubic root of 42255265 is about 348.3054552650.

The spelling of 42255265 in words is "forty-two million, two hundred fifty-five thousand, two hundred sixty-five".