44775521 has 8 divisors (see below), whose sum is σ = 51215424. Its totient is φ = 38346480.

The previous prime is 44775509. The next prime is 44775553. The reversal of 44775521 is 12557744.

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 44775521 - 2¹⁰ = 44774497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44775581) 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, 10286 + ... + 13976.

It is an arithmetic number, because the mean of its divisors is an integer number (6401928).

Almost surely, 2^44775521 is an apocalyptic number.

It is an amenable number.

44775521 is a deficient number, since it is larger than the sum of its proper divisors (6439903).

44775521 is a wasteful number, since it uses less digits than its factorization.

44775521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431.

The product of its digits is 39200, while the sum is 35.

The square root of 44775521 is about 6691.4513373408. The cubic root of 44775521 is about 355.0969014054.

The spelling of 44775521 in words is "forty-four million, seven hundred seventy-five thousand, five hundred twenty-one".