50981641 has 2 divisors, whose sum is σ = 50981642. Its totient is φ = 50981640.

The previous prime is 50981629. The next prime is 50981647. The reversal of 50981641 is 14618905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46294416 + 4687225 = 6804^2 + 2165^2 .

It is a cyclic number.

It is not a de Polignac number, because 50981641 - 2⁹ = 50981129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50981597 and 50981606.

It is not a weakly prime, because it can be changed into another prime (50981647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25490820 + 25490821.

It is an arithmetic number, because the mean of its divisors is an integer number (25490821).

Almost surely, 2^50981641 is an apocalyptic number.

It is an amenable number.

50981641 is a deficient number, since it is larger than the sum of its proper divisors (1).

50981641 is an equidigital number, since it uses as much as digits as its factorization.

50981641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 50981641 is about 7140.1429257404. The cubic root of 50981641 is about 370.7984728526.

The spelling of 50981641 in words is "fifty million, nine hundred eighty-one thousand, six hundred forty-one".