51536141 has 2 divisors, whose sum is σ = 51536142. Its totient is φ = 51536140.

The previous prime is 51536137. The next prime is 51536143. The reversal of 51536141 is 14163515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 198916 = 7165^2 + 446^2 .

It is a cyclic number.

It is not a de Polignac number, because 51536141 - 2² = 51536137 is a prime.

Together with 51536143, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51536141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51536143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25768070 + 25768071.

It is an arithmetic number, because the mean of its divisors is an integer number (25768071).

Almost surely, 2^51536141 is an apocalyptic number.

It is an amenable number.

51536141 is a deficient number, since it is larger than the sum of its proper divisors (1).

51536141 is an equidigital number, since it uses as much as digits as its factorization.

51536141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 26.

The square root of 51536141 is about 7178.8676683722. The cubic root of 51536141 is about 372.1379537098.

Adding to 51536141 its reverse (14163515), we get a palindrome (65699656).

The spelling of 51536141 in words is "fifty-one million, five hundred thirty-six thousand, one hundred forty-one".