49648561 has 8 divisors (see below), whose sum is σ = 51566760. Its totient is φ = 47760768.

The previous prime is 49648549. The next prime is 49648579. The reversal of 49648561 is 16584694.

It can be written as a sum of positive squares in 4 ways, for example, as 1081600 + 48566961 = 1040^2 + 6969^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49648561 - 2⁷ = 49648433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49648061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4246 + ... + 10831.

It is an arithmetic number, because the mean of its divisors is an integer number (6445845).

Almost surely, 2^49648561 is an apocalyptic number.

It is an amenable number.

49648561 is a deficient number, since it is larger than the sum of its proper divisors (1918199).

49648561 is a wasteful number, since it uses less digits than its factorization.

49648561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15203.

The product of its digits is 207360, while the sum is 43.

The square root of 49648561 is about 7046.1735005604. The cubic root of 49648561 is about 367.5379780888.

The spelling of 49648561 in words is "forty-nine million, six hundred forty-eight thousand, five hundred sixty-one".