45512648 has 16 divisors (see below), whose sum is σ = 85657500. Its totient is φ = 22670656.

The previous prime is 45512647. The next prime is 45512669. The reversal of 45512648 is 84621554.

It can be written as a sum of positive squares in 2 ways, for example, as 35259844 + 10252804 = 5938^2 + 3202^2 .

It is a super-2 number, since 2×45512648² = 4142802255943808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45512647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8423 + ... + 12726.

Almost surely, 2^45512648 is an apocalyptic number.

It is an amenable number.

45512648 is a deficient number, since it is larger than the sum of its proper divisors (40144852).

45512648 is a wasteful number, since it uses less digits than its factorization.

45512648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21424 (or 21420 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 45512648 is about 6746.3062486075. The cubic root of 45512648 is about 357.0349255874.

The spelling of 45512648 in words is "forty-five million, five hundred twelve thousand, six hundred forty-eight".