42452225 has 6 divisors (see below), whose sum is σ = 52640790. Its totient is φ = 33961760.

The previous prime is 42452203. The next prime is 42452231. The reversal of 42452225 is 52225424.

It can be written as a sum of positive squares in 3 ways, for example, as 163216 + 42289009 = 404^2 + 6503^2 .

It is not a de Polignac number, because 42452225 - 2⁶ = 42452161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42452194 and 42452203.

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, 849020 + ... + 849069.

It is an arithmetic number, because the mean of its divisors is an integer number (8773465).

Almost surely, 2^42452225 is an apocalyptic number.

It is an amenable number.

42452225 is a deficient number, since it is larger than the sum of its proper divisors (10188565).

42452225 is a wasteful number, since it uses less digits than its factorization.

42452225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698099 (or 1698094 counting only the distinct ones).

The product of its digits is 6400, while the sum is 26.

The square root of 42452225 is about 6515.5371996482. The cubic root of 42452225 is about 348.8457897312.

Adding to 42452225 its reverse (52225424), we get a palindrome (94677649).

The spelling of 42452225 in words is "forty-two million, four hundred fifty-two thousand, two hundred twenty-five".