50420551 has 2 divisors, whose sum is σ = 50420552. Its totient is φ = 50420550.

The previous prime is 50420483. The next prime is 50420563. The reversal of 50420551 is 15502405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50420551 - 2¹⁷ = 50289479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50423551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25210275 + 25210276.

It is an arithmetic number, because the mean of its divisors is an integer number (25210276).

Almost surely, 2^50420551 is an apocalyptic number.

50420551 is a deficient number, since it is larger than the sum of its proper divisors (1).

50420551 is an equidigital number, since it uses as much as digits as its factorization.

50420551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 50420551 is about 7100.7429892934. The cubic root of 50420551 is about 369.4331495436.

Adding to 50420551 its reverse (15502405), we get a palindrome (65922956).

The spelling of 50420551 in words is "fifty million, four hundred twenty thousand, five hundred fifty-one".