45515648 has 16 divisors (see below), whose sum is σ = 90675960. Its totient is φ = 22757760.

The previous prime is 45515641. The next prime is 45515651. The reversal of 45515648 is 84651554.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×45515648³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177668 + ... + 177923.

Almost surely, 2^45515648 is an apocalyptic number.

It is an amenable number.

45515648 is a deficient number, since it is larger than the sum of its proper divisors (45160312).

45515648 is an equidigital number, since it uses as much as digits as its factorization.

45515648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355605 (or 355593 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 45515648 is about 6746.5285888374. The cubic root of 45515648 is about 357.0427701558.

The spelling of 45515648 in words is "forty-five million, five hundred fifteen thousand, six hundred forty-eight".