44552809 has 6 divisors (see below), whose sum is σ = 51826794. Its totient is φ = 38188080.

The previous prime is 44552803. The next prime is 44552813. The reversal of 44552809 is 90825544.

It can be written as a sum of positive squares in only one way, i.e., 31047184 + 13505625 = 5572^2 + 3675^2 .

It is not a de Polignac number, because 44552809 - 2⁷ = 44552681 is a prime.

It is a super-3 number, since 3×44552809³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44552803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 454572 + ... + 454669.

It is an arithmetic number, because the mean of its divisors is an integer number (8637799).

Almost surely, 2^44552809 is an apocalyptic number.

44552809 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

44552809 is a deficient number, since it is larger than the sum of its proper divisors (7273985).

44552809 is an equidigital number, since it uses as much as digits as its factorization.

44552809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909255 (or 909248 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 44552809 is about 6674.7890603374. The cubic root of 44552809 is about 354.5071757111.

The spelling of 44552809 in words is "forty-four million, five hundred fifty-two thousand, eight hundred nine".