45506518 has 24 divisors (see below), whose sum is σ = 73186344. Its totient is φ = 21216000.

The previous prime is 45506509. The next prime is 45506557. The reversal of 45506518 is 81560554.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75418 + ... + 76018.

It is an arithmetic number, because the mean of its divisors is an integer number (3049431).

Almost surely, 2^45506518 is an apocalyptic number.

45506518 is a deficient number, since it is larger than the sum of its proper divisors (27679826).

45506518 is a wasteful number, since it uses less digits than its factorization.

45506518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 45506518 is about 6745.8519106189. The cubic root of 45506518 is about 357.0188954473.

The spelling of 45506518 in words is "forty-five million, five hundred six thousand, five hundred eighteen".