51989411 has 2 divisors, whose sum is σ = 51989412. Its totient is φ = 51989410.

The previous prime is 51989401. The next prime is 51989419. The reversal of 51989411 is 11498915.

51989411 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51989411 - 2¹⁴ = 51973027 is a prime.

It is a super-2 number, since 2×51989411² = 5405797712253842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51989419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25994705 + 25994706.

It is an arithmetic number, because the mean of its divisors is an integer number (25994706).

Almost surely, 2^51989411 is an apocalyptic number.

51989411 is a deficient number, since it is larger than the sum of its proper divisors (1).

51989411 is an equidigital number, since it uses as much as digits as its factorization.

51989411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 38.

The square root of 51989411 is about 7210.3682984990. The cubic root of 51989411 is about 373.2257783460.

The spelling of 51989411 in words is "fifty-one million, nine hundred eighty-nine thousand, four hundred eleven".