42275025 has 72 divisors (see below), whose sum is σ = 82937400. Its totient is φ = 20459520.

The previous prime is 42275021. The next prime is 42275071. The reversal of 42275025 is 52057224.

It can be written as a sum of positive squares in 12 ways, for example, as 28901376 + 13373649 = 5376^2 + 3657^2 .

It is not a de Polignac number, because 42275025 - 2² = 42275021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42275025.

It is not an unprimeable number, because it can be changed into a prime (42275021) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 283651 + ... + 283799.

Almost surely, 2^42275025 is an apocalyptic number.

42275025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42275025 is a deficient number, since it is larger than the sum of its proper divisors (40662375).

42275025 is a wasteful number, since it uses less digits than its factorization.

42275025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 42275025 is about 6501.9247150363. The cubic root of 42275025 is about 348.3597399658.

The spelling of 42275025 in words is "forty-two million, two hundred seventy-five thousand, twenty-five".