44561521 has 4 divisors (see below), whose sum is σ = 44665344. Its totient is φ = 44457700.

The previous prime is 44561501. The next prime is 44561527. The reversal of 44561521 is 12516544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44561521 - 2⁹ = 44561009 is a prime.

It is a super-3 number, since 3×44561521³ (a number of 24 digits) contains 333 as substring.

It is a pancake number, because a pancake can be divided into 44561521 parts by 9440 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44561521.

It is not an unprimeable number, because it can be changed into a prime (44561527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51265 + ... + 52126.

It is an arithmetic number, because the mean of its divisors is an integer number (11166336).

Almost surely, 2^44561521 is an apocalyptic number.

It is an amenable number.

44561521 is a deficient number, since it is larger than the sum of its proper divisors (103823).

44561521 is a wasteful number, since it uses less digits than its factorization.

44561521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103822.

The product of its digits is 4800, while the sum is 28.

The square root of 44561521 is about 6675.4416333303. The cubic root of 44561521 is about 354.5302813641.

The spelling of 44561521 in words is "forty-four million, five hundred sixty-one thousand, five hundred twenty-one".