45521017 has 6 divisors (see below), whose sum is σ = 48043338. Its totient is φ = 43124832.

The previous prime is 45520999. The next prime is 45521023. The reversal of 45521017 is 71012554.

It can be written as a sum of positive squares in only one way, i.e., 36735721 + 8785296 = 6061^2 + 2964^2 .

It is not a de Polignac number, because 45521017 - 2¹⁹ = 44996729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45520982 and 45521000.

It is not an unprimeable number, because it can be changed into a prime (45521057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62688 + ... + 63409.

It is an arithmetic number, because the mean of its divisors is an integer number (8007223).

Almost surely, 2^45521017 is an apocalyptic number.

It is an amenable number.

45521017 is a deficient number, since it is larger than the sum of its proper divisors (2522321).

45521017 is a wasteful number, since it uses less digits than its factorization.

45521017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126135 (or 126116 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 45521017 is about 6746.9264854451. The cubic root of 45521017 is about 357.0568084580.

The spelling of 45521017 in words is "forty-five million, five hundred twenty-one thousand, seventeen".