45072225 has 36 divisors (see below), whose sum is σ = 88073232. Its totient is φ = 21852000.

The previous prime is 45072217. The next prime is 45072241. The reversal of 45072225 is 52227054.

It is not a de Polignac number, because 45072225 - 2³ = 45072217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6631 + ... + 11580.

Almost surely, 2^45072225 is an apocalyptic number.

45072225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45072225 is a deficient number, since it is larger than the sum of its proper divisors (43001007).

45072225 is a wasteful number, since it uses less digits than its factorization.

45072225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18238 (or 18230 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 45072225 is about 6713.5851078243. The cubic root of 45072225 is about 355.8795225243.

Adding to 45072225 its reverse (52227054), we get a palindrome (97299279).

The spelling of 45072225 in words is "forty-five million, seventy-two thousand, two hundred twenty-five".