45521515 has 8 divisors (see below), whose sum is σ = 58827888. Its totient is φ = 33615840.

The previous prime is 45521513. The next prime is 45521519. The reversal of 45521515 is 51512554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45521515 - 2¹ = 45521513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45521513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350101 + ... + 350230.

It is an arithmetic number, because the mean of its divisors is an integer number (7353486).

Almost surely, 2^45521515 is an apocalyptic number.

45521515 is a deficient number, since it is larger than the sum of its proper divisors (13306373).

45521515 is a wasteful number, since it uses less digits than its factorization.

45521515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700349.

The product of its digits is 5000, while the sum is 28.

The square root of 45521515 is about 6746.9633910375. The cubic root of 45521515 is about 357.0581105206.

The spelling of 45521515 in words is "forty-five million, five hundred twenty-one thousand, five hundred fifteen".