45225625 has 15 divisors (see below), whose sum is σ = 56724811. Its totient is φ = 36046000.

The previous prime is 45225601. The next prime is 45225629. The reversal of 45225625 is 52652254.

It is a happy number.

The square root of 45225625 is 6725.

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

It can be written as a sum of positive squares in 7 ways, for example, as 45198729 + 26896 = 6723^2 + 164^2 .

It is not a de Polignac number, because 45225625 - 2⁹ = 45225113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45225629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 167991 + ... + 168259.

Almost surely, 2^45225625 is an apocalyptic number.

45225625 is the 6725-th square number.

45225625 is the 3363-rd centered octagonal number.

It is an amenable number.

45225625 is a deficient number, since it is larger than the sum of its proper divisors (11499186).

45225625 is an frugal number, since it uses more digits than its factorization.

45225625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 274 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The cubic root of 45225625 is about 356.2828019453.

Adding to 45225625 its reverse (52652254), we get a palindrome (97877879).

The spelling of 45225625 in words is "forty-five million, two hundred twenty-five thousand, six hundred twenty-five".