42559225 has 6 divisors (see below), whose sum is σ = 52773470. Its totient is φ = 34047360.

The previous prime is 42559171. The next prime is 42559229. The reversal of 42559225 is 52295524.

It can be written as a sum of positive squares in 3 ways, for example, as 724201 + 41835024 = 851^2 + 6468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42559225 is a prime.

It is a super-2 number, since 2×42559225² = 3622575265201250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42559229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 851160 + ... + 851209.

Almost surely, 2^42559225 is an apocalyptic number.

It is an amenable number.

42559225 is a deficient number, since it is larger than the sum of its proper divisors (10214245).

42559225 is a wasteful number, since it uses less digits than its factorization.

42559225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702379 (or 1702374 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 42559225 is about 6523.7431739761. The cubic root of 42559225 is about 349.1386301584.

The spelling of 42559225 in words is "forty-two million, five hundred fifty-nine thousand, two hundred twenty-five".