44424521 has 2 divisors, whose sum is σ = 44424522. Its totient is φ = 44424520.

The previous prime is 44424517. The next prime is 44424529. The reversal of 44424521 is 12542444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 15625 = 6664^2 + 125^2 .

It is a cyclic number.

It is not a de Polignac number, because 44424521 - 2² = 44424517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44424529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22212260 + 22212261.

It is an arithmetic number, because the mean of its divisors is an integer number (22212261).

Almost surely, 2^44424521 is an apocalyptic number.

It is an amenable number.

44424521 is a deficient number, since it is larger than the sum of its proper divisors (1).

44424521 is an equidigital number, since it uses as much as digits as its factorization.

44424521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 26.

The square root of 44424521 is about 6665.1722408352. The cubic root of 44424521 is about 354.1665856024.

Adding to 44424521 its reverse (12542444), we get a palindrome (56966965).

The spelling of 44424521 in words is "forty-four million, four hundred twenty-four thousand, five hundred twenty-one".