51192241 has 2 divisors, whose sum is σ = 51192242. Its totient is φ = 51192240.

The previous prime is 51192233. The next prime is 51192283. The reversal of 51192241 is 14229115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35224225 + 15968016 = 5935^2 + 3996^2 .

It is a cyclic number.

It is not a de Polignac number, because 51192241 - 2³ = 51192233 is a prime.

It is not a weakly prime, because it can be changed into another prime (51142241) 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, 25596120 + 25596121.

It is an arithmetic number, because the mean of its divisors is an integer number (25596121).

Almost surely, 2^51192241 is an apocalyptic number.

It is an amenable number.

51192241 is a deficient number, since it is larger than the sum of its proper divisors (1).

51192241 is an equidigital number, since it uses as much as digits as its factorization.

51192241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 25.

The square root of 51192241 is about 7154.8753308496. The cubic root of 51192241 is about 371.3083484041.

The spelling of 51192241 in words is "fifty-one million, one hundred ninety-two thousand, two hundred forty-one".