45249225 has 48 divisors (see below), whose sum is σ = 86661120. Its totient is φ = 20404800.

The previous prime is 45249209. The next prime is 45249229. The reversal of 45249225 is 52294254.

45249225 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 45249225 - 2⁴ = 45249209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45249229) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 40930 + ... + 42020.

It is an arithmetic number, because the mean of its divisors is an integer number (1805440).

Almost surely, 2^45249225 is an apocalyptic number.

It is an amenable number.

45249225 is a deficient number, since it is larger than the sum of its proper divisors (41411895).

45249225 is a wasteful number, since it uses less digits than its factorization.

45249225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1185 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 45249225 is about 6726.7544179939. The cubic root of 45249225 is about 356.3447639561.

The spelling of 45249225 in words is "forty-five million, two hundred forty-nine thousand, two hundred twenty-five".