49644005 has 18 divisors (see below), whose sum is σ = 62733426. Its totient is φ = 37711168.

The previous prime is 49643999. The next prime is 49644019. The reversal of 49644005 is 50044694.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7873636 + 41770369 = 2806^2 + 6463^2 .

It is not a de Polignac number, because 49644005 - 2⁸ = 49643749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 362297 + ... + 362433.

Almost surely, 2^49644005 is an apocalyptic number.

It is an amenable number.

49644005 is a deficient number, since it is larger than the sum of its proper divisors (13089421).

49644005 is an equidigital number, since it uses as much as digits as its factorization.

49644005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 49644005 is about 7045.8501971018. The cubic root of 49644005 is about 367.5267353712.

Adding to 49644005 its reverse (50044694), we get a palindrome (99688699).

Subtracting 49644005 from its reverse (50044694), we obtain a square (400689 = 633²).

The spelling of 49644005 in words is "forty-nine million, six hundred forty-four thousand, five".