45204225 has 48 divisors (see below), whose sum is σ = 82286400. Its totient is φ = 21715200.

The previous prime is 45204217. The next prime is 45204227. The reversal of 45204225 is 52240254.

It is a happy number.

It is not a de Polignac number, because 45204225 - 2³ = 45204217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45204195 and 45204204.

It is not an unprimeable number, because it can be changed into a prime (45204227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 129351 + ... + 129699.

It is an arithmetic number, because the mean of its divisors is an integer number (1714300).

Almost surely, 2^45204225 is an apocalyptic number.

It is an amenable number.

45204225 is a deficient number, since it is larger than the sum of its proper divisors (37082175).

45204225 is a wasteful number, since it uses less digits than its factorization.

45204225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45204225 is about 6723.4087336707. The cubic root of 45204225 is about 356.2265974162.

Adding to 45204225 its reverse (52240254), we get a palindrome (97444479).

The spelling of 45204225 in words is "forty-five million, two hundred four thousand, two hundred twenty-five".