45731225 has 6 divisors (see below), whose sum is σ = 56706750. Its totient is φ = 36584960.

The previous prime is 45731221. The next prime is 45731227. The reversal of 45731225 is 52213754.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11485321 + 34245904 = 3389^2 + 5852^2 .

It is not a de Polignac number, because 45731225 - 2² = 45731221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45731221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 914600 + ... + 914649.

It is an arithmetic number, because the mean of its divisors is an integer number (9451125).

Almost surely, 2^45731225 is an apocalyptic number.

It is an amenable number.

45731225 is a deficient number, since it is larger than the sum of its proper divisors (10975525).

45731225 is a wasteful number, since it uses less digits than its factorization.

45731225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829259 (or 1829254 counting only the distinct ones).

The product of its digits is 8400, while the sum is 29.

The square root of 45731225 is about 6762.4865988777. The cubic root of 45731225 is about 357.6055730063.

Adding to 45731225 its reverse (52213754), we get a palindrome (97944979).

The spelling of 45731225 in words is "forty-five million, seven hundred thirty-one thousand, two hundred twenty-five".