50140561 has 9 divisors (see below), whose sum is σ = 51366321. Its totient is φ = 48943872.

The previous prime is 50140543. The next prime is 50140567. The reversal of 50140561 is 16504105.

The square root of 50140561 is 7081.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 14161 + 50126400 = 119^2 + 7080^2 .

It is not a de Polignac number, because 50140561 - 2¹¹ = 50138513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50140567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 516865 + ... + 516961.

It is an arithmetic number, because the mean of its divisors is an integer number (5707369).

Almost surely, 2^50140561 is an apocalyptic number.

50140561 is the 7081-st square number.

50140561 is the 3541-st centered octagonal number.

It is an amenable number.

50140561 is a deficient number, since it is larger than the sum of its proper divisors (1225760).

50140561 is an frugal number, since it uses more digits than its factorization.

50140561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The cubic root of 50140561 is about 368.7480476388.

Adding to 50140561 its reverse (16504105), we get a palindrome (66644666).

The spelling of 50140561 in words is "fifty million, one hundred forty thousand, five hundred sixty-one".