50220761 has 2 divisors, whose sum is σ = 50220762. Its totient is φ = 50220760.

The previous prime is 50220757. The next prime is 50220767. The reversal of 50220761 is 16702205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 250000 = 7069^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 50220761 - 2² = 50220757 is a prime.

It is a super-4 number, since 4×50220761⁴ (a number of 32 digits) contains 4444 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50220767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25110380 + 25110381.

It is an arithmetic number, because the mean of its divisors is an integer number (25110381).

Almost surely, 2^50220761 is an apocalyptic number.

It is an amenable number.

50220761 is a deficient number, since it is larger than the sum of its proper divisors (1).

50220761 is an equidigital number, since it uses as much as digits as its factorization.

50220761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 50220761 is about 7086.6607792387. The cubic root of 50220761 is about 368.9445474993.

Adding to 50220761 its reverse (16702205), we get a palindrome (66922966).

The spelling of 50220761 in words is "fifty million, two hundred twenty thousand, seven hundred sixty-one".