45521225 has 12 divisors (see below), whose sum is σ = 56663040. Its totient is φ = 36277200.

The previous prime is 45521191. The next prime is 45521251. The reversal of 45521225 is 52212554.

45521225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45521225 - 2¹⁰ = 45520201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45521194 and 45521203.

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 11 ways as a sum of consecutive naturals, for example, 3416 + ... + 10134.

It is an arithmetic number, because the mean of its divisors is an integer number (4721920).

Almost surely, 2^45521225 is an apocalyptic number.

It is an amenable number.

45521225 is a deficient number, since it is larger than the sum of its proper divisors (11141815).

45521225 is a wasteful number, since it uses less digits than its factorization.

45521225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000 (or 6995 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 45521225 is about 6746.9418998536. The cubic root of 45521225 is about 357.0573522925.

Adding to 45521225 its reverse (52212554), we get a palindrome (97733779).

The spelling of 45521225 in words is "forty-five million, five hundred twenty-one thousand, two hundred twenty-five".