50551939 has 2 divisors, whose sum is σ = 50551940. Its totient is φ = 50551938.

The previous prime is 50551889. The next prime is 50551957. The reversal of 50551939 is 93915505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50551939 - 2¹³ = 50543747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50551898 and 50551907.

It is not a weakly prime, because it can be changed into another prime (50551439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25275969 + 25275970.

It is an arithmetic number, because the mean of its divisors is an integer number (25275970).

Almost surely, 2^50551939 is an apocalyptic number.

50551939 is a deficient number, since it is larger than the sum of its proper divisors (1).

50551939 is an equidigital number, since it uses as much as digits as its factorization.

50551939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30375, while the sum is 37.

The square root of 50551939 is about 7109.9886779094. The cubic root of 50551939 is about 369.7537660442.

The spelling of 50551939 in words is "fifty million, five hundred fifty-one thousand, nine hundred thirty-nine".