45523515 has 16 divisors (see below), whose sum is σ = 74073600. Its totient is φ = 23867232.

The previous prime is 45523493. The next prime is 45523529. The reversal of 45523515 is 51532554.

It is a happy number.

It is not a de Polignac number, because 45523515 - 2⁵ = 45523483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24835 + ... + 26604.

It is an arithmetic number, because the mean of its divisors is an integer number (4629600).

Almost surely, 2^45523515 is an apocalyptic number.

45523515 is a deficient number, since it is larger than the sum of its proper divisors (28550085).

45523515 is a wasteful number, since it uses less digits than its factorization.

45523515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51506.

The product of its digits is 15000, while the sum is 30.

The square root of 45523515 is about 6747.1116042348. Note that the first 3 decimals coincide. The cubic root of 45523515 is about 357.0633395920.

The spelling of 45523515 in words is "forty-five million, five hundred twenty-three thousand, five hundred fifteen".