48644569 has 2 divisors, whose sum is σ = 48644570. Its totient is φ = 48644568.

The previous prime is 48644539. The next prime is 48644581. The reversal of 48644569 is 96544684.

48644569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34105600 + 14538969 = 5840^2 + 3813^2 .

It is a cyclic number.

It is not a de Polignac number, because 48644569 - 2⁵ = 48644537 is a prime.

It is a super-2 number, since 2×48644569² = 4732588186391522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48644509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24322284 + 24322285.

It is an arithmetic number, because the mean of its divisors is an integer number (24322285).

Almost surely, 2^48644569 is an apocalyptic number.

It is an amenable number.

48644569 is a deficient number, since it is larger than the sum of its proper divisors (1).

48644569 is an equidigital number, since it uses as much as digits as its factorization.

48644569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 46.

The square root of 48644569 is about 6974.5658646256. The cubic root of 48644569 is about 365.0436402440.

The spelling of 48644569 in words is "forty-eight million, six hundred forty-four thousand, five hundred sixty-nine".