50561849 has 4 divisors (see below), whose sum is σ = 54451236. Its totient is φ = 46672464.

The previous prime is 50561839. The next prime is 50561867. The reversal of 50561849 is 94816505.

50561849 = 1382² + 1383² + ... + 1407².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2050624 + 48511225 = 1432^2 + 6965^2 .

It is a cyclic number.

It is not a de Polignac number, because 50561849 - 2¹² = 50557753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50561839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944674 + ... + 1944699.

It is an arithmetic number, because the mean of its divisors is an integer number (13612809).

Almost surely, 2^50561849 is an apocalyptic number.

It is an amenable number.

50561849 is a deficient number, since it is larger than the sum of its proper divisors (3889387).

50561849 is a wasteful number, since it uses less digits than its factorization.

50561849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889386.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 50561849 is about 7110.6855506343. The cubic root of 50561849 is about 369.7779261488. Note that the first 3 decimals are identical.

The spelling of 50561849 in words is "fifty million, five hundred sixty-one thousand, eight hundred forty-nine".