45210625 has 10 divisors (see below), whose sum is σ = 56495978. Its totient is φ = 36168000.

The previous prime is 45210601. The next prime is 45210629. The reversal of 45210625 is 52601254.

It can be written as a sum of positive squares in 5 ways, for example, as 22543504 + 22667121 = 4748^2 + 4761^2 .

It is not a de Polignac number, because 45210625 - 2⁵ = 45210593 is a prime.

It is a super-2 number, since 2×45210625² = 4088001225781250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45210625.

It is not an unprimeable number, because it can be changed into a prime (45210629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35544 + ... + 36793.

Almost surely, 2^45210625 is an apocalyptic number.

It is an amenable number.

45210625 is a deficient number, since it is larger than the sum of its proper divisors (11285353).

45210625 is an frugal number, since it uses more digits than its factorization.

45210625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72357 (or 72342 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 45210625 is about 6723.8846658758. The cubic root of 45210625 is about 356.2434081062.

Adding to 45210625 its reverse (52601254), we get a palindrome (97811879).

The spelling of 45210625 in words is "forty-five million, two hundred ten thousand, six hundred twenty-five".