45044521 has 8 divisors (see below), whose sum is σ = 46183104. Its totient is φ = 43910160.

The previous prime is 45044513. The next prime is 45044537. The reversal of 45044521 is 12544054.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45044521 - 2³ = 45044513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45044501) 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, 37551 + ... + 38731.

It is an arithmetic number, because the mean of its divisors is an integer number (5772888).

Almost surely, 2^45044521 is an apocalyptic number.

It is an amenable number.

45044521 is a deficient number, since it is larger than the sum of its proper divisors (1138583).

45044521 is a wasteful number, since it uses less digits than its factorization.

45044521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 45044521 is about 6711.5215115501. The cubic root of 45044521 is about 355.8065928578.

Adding to 45044521 its reverse (12544054), we get a palindrome (57588575).

It can be divided in two parts, 4504 and 4521, that added together give a square (9025 = 95²).

The spelling of 45044521 in words is "forty-five million, forty-four thousand, five hundred twenty-one".