45440225 has 12 divisors (see below), whose sum is σ = 56875824. Its totient is φ = 36010320.

The previous prime is 45440189. The next prime is 45440233. The reversal of 45440225 is 52204454.

It is not a de Polignac number, because 45440225 - 2⁸ = 45439969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45440194 and 45440203.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5819 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (4739652).

Almost surely, 2^45440225 is an apocalyptic number.

It is an amenable number.

45440225 is a deficient number, since it is larger than the sum of its proper divisors (11435599).

45440225 is a wasteful number, since it uses less digits than its factorization.

45440225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17104 (or 17099 counting only the distinct ones).

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

The square root of 45440225 is about 6740.9365076375. The cubic root of 45440225 is about 356.8454451598.

Adding to 45440225 its reverse (52204454), we get a palindrome (97644679).

The spelling of 45440225 in words is "forty-five million, four hundred forty thousand, two hundred twenty-five".