44561261 has 4 divisors (see below), whose sum is σ = 44720124. Its totient is φ = 44402400.

The previous prime is 44561239. The next prime is 44561263. The reversal of 44561261 is 16216544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28408900 + 16152361 = 5330^2 + 4019^2 .

It is a cyclic number.

It is not a de Polignac number, because 44561261 - 2¹⁸ = 44299117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44561263) 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 3 ways as a sum of consecutive naturals, for example, 79010 + ... + 79571.

It is an arithmetic number, because the mean of its divisors is an integer number (11180031).

Almost surely, 2^44561261 is an apocalyptic number.

It is an amenable number.

44561261 is a deficient number, since it is larger than the sum of its proper divisors (158863).

44561261 is a wasteful number, since it uses less digits than its factorization.

44561261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158862.

The product of its digits is 5760, while the sum is 29.

The square root of 44561261 is about 6675.4221589350. The cubic root of 44561261 is about 354.5295918450.

The spelling of 44561261 in words is "forty-four million, five hundred sixty-one thousand, two hundred sixty-one".