42937225 has 6 divisors (see below), whose sum is σ = 53242190. Its totient is φ = 34349760.

The previous prime is 42937217. The next prime is 42937241. The reversal of 42937225 is 52273924.

It is a happy number.

42937225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 635209 + 42302016 = 797^2 + 6504^2 .

It is not a de Polignac number, because 42937225 - 2³ = 42937217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 858720 + ... + 858769.

Almost surely, 2^42937225 is an apocalyptic number.

It is an amenable number.

42937225 is a deficient number, since it is larger than the sum of its proper divisors (10304965).

42937225 is a wasteful number, since it uses less digits than its factorization.

42937225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717499 (or 1717494 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 42937225 is about 6552.6502271982. The cubic root of 42937225 is about 350.1692378820.

The spelling of 42937225 in words is "forty-two million, nine hundred thirty-seven thousand, two hundred twenty-five".