45525021 has 8 divisors (see below), whose sum is σ = 60822720.
Its totient is φ = 30288672.
The previous prime is 45525001. The next prime is 45525061. The reversal of 45525021 is 12052554.
Adding to 45525021 its reverse (12052554), we get a palindrome (57577575).
It is a happy number.
45525021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 45525021 - 217 = 45393949 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 45524982 and 45525000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (45525001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13576 + ... + 16593.
It is an arithmetic number, because the mean of its divisors is an integer number (7602840).
Almost surely, 245525021 is an apocalyptic number.
It is an amenable number.
45525021 is a deficient number, since it is larger than the sum of its proper divisors (15297699).
45525021 is a wasteful number, since it uses less digits than its factorization.
45525021 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30675.
The product of its (nonzero) digits is 2000, while the sum is 24.
The square root of 45525021 is about 6747.2232066236.
The cubic root of 45525021 is about 357.0672769818.
The spelling of 45525021 in words is "forty-five million, five hundred twenty-five thousand, twenty-one".