50811401 has 2 divisors, whose sum is σ = 50811402. Its totient is φ = 50811400.

The previous prime is 50811391. The next prime is 50811403. The reversal of 50811401 is 10411805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50751376 + 60025 = 7124^2 + 245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50811401 is a prime.

Together with 50811403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50811403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25405700 + 25405701.

It is an arithmetic number, because the mean of its divisors is an integer number (25405701).

Almost surely, 2^50811401 is an apocalyptic number.

It is an amenable number.

50811401 is a deficient number, since it is larger than the sum of its proper divisors (1).

50811401 is an equidigital number, since it uses as much as digits as its factorization.

50811401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 50811401 is about 7128.2116270492. The cubic root of 50811401 is about 370.3852840764.

The spelling of 50811401 in words is "fifty million, eight hundred eleven thousand, four hundred one".