42536225 has 6 divisors (see below), whose sum is σ = 52744950. Its totient is φ = 34028960.

The previous prime is 42536213. The next prime is 42536233. The reversal of 42536225 is 52263524.

It can be written as a sum of positive squares in 3 ways, for example, as 12054784 + 30481441 = 3472^2 + 5521^2 .

It is not a de Polignac number, because 42536225 - 2¹⁶ = 42470689 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 850700 + ... + 850749.

It is an arithmetic number, because the mean of its divisors is an integer number (8790825).

Almost surely, 2^42536225 is an apocalyptic number.

It is an amenable number.

42536225 is a deficient number, since it is larger than the sum of its proper divisors (10208725).

42536225 is a wasteful number, since it uses less digits than its factorization.

42536225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701459 (or 1701454 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 42536225 is about 6521.9801440973. The cubic root of 42536225 is about 349.0757245995.

Adding to 42536225 its reverse (52263524), we get a palindrome (94799749).

The spelling of 42536225 in words is "forty-two million, five hundred thirty-six thousand, two hundred twenty-five".