44247557 has 2 divisors, whose sum is σ = 44247558. Its totient is φ = 44247556.

The previous prime is 44247551. The next prime is 44247587. The reversal of 44247557 is 75574244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37283236 + 6964321 = 6106^2 + 2639^2 .

It is a cyclic number.

It is not a de Polignac number, because 44247557 - 2⁶ = 44247493 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44247557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44247551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22123778 + 22123779.

It is an arithmetic number, because the mean of its divisors is an integer number (22123779).

Almost surely, 2^44247557 is an apocalyptic number.

It is an amenable number.

44247557 is a deficient number, since it is larger than the sum of its proper divisors (1).

44247557 is an equidigital number, since it uses as much as digits as its factorization.

44247557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156800, while the sum is 38.

The square root of 44247557 is about 6651.8837181659. The cubic root of 44247557 is about 353.6956884493.

The spelling of 44247557 in words is "forty-four million, two hundred forty-seven thousand, five hundred fifty-seven".