50417989 has 2 divisors, whose sum is σ = 50417990. Its totient is φ = 50417988.

The previous prime is 50417959. The next prime is 50417993. The reversal of 50417989 is 98971405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 10349089 = 6330^2 + 3217^2 .

It is a cyclic number.

It is not a de Polignac number, because 50417989 - 2¹³ = 50409797 is a prime.

It is a super-2 number, since 2×50417989² = 5083947229608242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50417959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25208994 + 25208995.

It is an arithmetic number, because the mean of its divisors is an integer number (25208995).

Almost surely, 2^50417989 is an apocalyptic number.

It is an amenable number.

50417989 is a deficient number, since it is larger than the sum of its proper divisors (1).

50417989 is an equidigital number, since it uses as much as digits as its factorization.

50417989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 50417989 is about 7100.5625833451. The cubic root of 50417989 is about 369.4268921496.

The spelling of 50417989 in words is "fifty million, four hundred seventeen thousand, nine hundred eighty-nine".