45006521 has 8 divisors (see below), whose sum is σ = 53209920. Its totient is φ = 37246608.

The previous prime is 45006517. The next prime is 45006523. The reversal of 45006521 is 12560054.

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

It is not a de Polignac number, because 45006521 - 2² = 45006517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45006523) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 110651 + ... + 111056.

It is an arithmetic number, because the mean of its divisors is an integer number (6651240).

Almost surely, 2^45006521 is an apocalyptic number.

It is an amenable number.

45006521 is a deficient number, since it is larger than the sum of its proper divisors (8203399).

45006521 is a wasteful number, since it uses less digits than its factorization.

45006521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221743.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 45006521 is about 6708.6899615350. The cubic root of 45006521 is about 355.7065107312.

Adding to 45006521 its reverse (12560054), we get a palindrome (57566575).

The spelling of 45006521 in words is "forty-five million, six thousand, five hundred twenty-one".