50699137 has 2 divisors, whose sum is σ = 50699138. Its totient is φ = 50699136.

The previous prime is 50699081. The next prime is 50699177. The reversal of 50699137 is 73199605.

It is an a-pointer prime, because the next prime (50699177) can be obtained adding 50699137 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27888961 + 22810176 = 5281^2 + 4776^2 .

It is a cyclic number.

It is not a de Polignac number, because 50699137 - 2⁷ = 50699009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50699137.

It is not a weakly prime, because it can be changed into another prime (50699177) 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, 25349568 + 25349569.

It is an arithmetic number, because the mean of its divisors is an integer number (25349569).

Almost surely, 2^50699137 is an apocalyptic number.

It is an amenable number.

50699137 is a deficient number, since it is larger than the sum of its proper divisors (1).

50699137 is an equidigital number, since it uses as much as digits as its factorization.

50699137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 50699137 is about 7120.3326467237. The cubic root of 50699137 is about 370.1123033825.

The spelling of 50699137 in words is "fifty million, six hundred ninety-nine thousand, one hundred thirty-seven".