42225273 has 16 divisors (see below), whose sum is σ = 62845440. Its totient is φ = 28019952.

The previous prime is 42225257. The next prime is 42225283. The reversal of 42225273 is 37252224.

It is not a de Polignac number, because 42225273 - 2⁴ = 42225257 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42225283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515 + ... + 9527.

It is an arithmetic number, because the mean of its divisors is an integer number (3927840).

Almost surely, 2^42225273 is an apocalyptic number.

It is an amenable number.

42225273 is a deficient number, since it is larger than the sum of its proper divisors (20620167).

42225273 is a wasteful number, since it uses less digits than its factorization.

42225273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7245 (or 7239 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 42225273 is about 6498.0976446957. The cubic root of 42225273 is about 348.2230288523.

Adding to 42225273 its reverse (37252224), we get a palindrome (79477497).

The spelling of 42225273 in words is "forty-two million, two hundred twenty-five thousand, two hundred seventy-three".