4545360040225 has 27 divisors (see below), whose sum is σ = 5892273004723. Its totient is φ = 3478000937840.

The previous prime is 4545360040217. The next prime is 4545360040267. The reversal of 4545360040225 is 5220400635454.

It is a happy number.

The square root of 4545360040225 is 2131985.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1636329614481 + 2909030425744 = 1279191^2 + 1705588^2 .

It is not a de Polignac number, because 4545360040225 - 2³ = 4545360040217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 245169006 + ... + 245187544.

Almost surely, 2^{4545360040225} is an apocalyptic number.

4545360040225 is the 2131985-th square number.

4545360040225 is the 1065993-rd centered octagonal number.

It is an amenable number.

4545360040225 is a deficient number, since it is larger than the sum of its proper divisors (1346912964498).

4545360040225 is an frugal number, since it uses more digits than its factorization.

4545360040225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37134 (or 18567 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 4545360040225 its reverse (5220400635454), we get a palindrome (9765760675679).

The spelling of 4545360040225 in words is "four trillion, five hundred forty-five billion, three hundred sixty million, forty thousand, two hundred twenty-five".