44655649 has 2 divisors, whose sum is σ = 44655650. Its totient is φ = 44655648.

The previous prime is 44655647. The next prime is 44655659. The reversal of 44655649 is 94655644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31002624 + 13653025 = 5568^2 + 3695^2 .

It is a cyclic number.

It is not a de Polignac number, because 44655649 - 2¹ = 44655647 is a prime.

It is a super-2 number, since 2×44655649² = 3988253975222402, which contains 22 as substring.

Together with 44655647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44655641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22327824 + 22327825.

It is an arithmetic number, because the mean of its divisors is an integer number (22327825).

Almost surely, 2^44655649 is an apocalyptic number.

It is an amenable number.

44655649 is a deficient number, since it is larger than the sum of its proper divisors (1).

44655649 is an equidigital number, since it uses as much as digits as its factorization.

44655649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 44655649 is about 6682.4882341834. The cubic root of 44655649 is about 354.7797324320.

The spelling of 44655649 in words is "forty-four million, six hundred fifty-five thousand, six hundred forty-nine".