44545521 has 8 divisors (see below), whose sum is σ = 60999424. Its totient is φ = 28894320.

The previous prime is 44545513. The next prime is 44545541. The reversal of 44545521 is 12554544.

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

It is not a de Polignac number, because 44545521 - 2³ = 44545513 is a prime.

It is a super-2 number, since 2×44545521² = 3968606882322882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44545511) 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, 200545 + ... + 200766.

It is an arithmetic number, because the mean of its divisors is an integer number (7624928).

Almost surely, 2^44545521 is an apocalyptic number.

It is an amenable number.

44545521 is a deficient number, since it is larger than the sum of its proper divisors (16453903).

44545521 is a wasteful number, since it uses less digits than its factorization.

44545521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401351.

The product of its digits is 16000, while the sum is 30.

The square root of 44545521 is about 6674.2431031541. The cubic root of 44545521 is about 354.4878444258.

The spelling of 44545521 in words is "forty-four million, five hundred forty-five thousand, five hundred twenty-one".