51986453 has 2 divisors, whose sum is σ = 51986454. Its totient is φ = 51986452.

The previous prime is 51986423. The next prime is 51986461. The reversal of 51986453 is 35468915.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 117649 = 7202^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 51986453 - 2¹⁶ = 51920917 is a prime.

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 51986453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51986423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25993226 + 25993227.

It is an arithmetic number, because the mean of its divisors is an integer number (25993227).

Almost surely, 2^51986453 is an apocalyptic number.

It is an amenable number.

51986453 is a deficient number, since it is larger than the sum of its proper divisors (1).

51986453 is an equidigital number, since it uses as much as digits as its factorization.

51986453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 51986453 is about 7210.1631742978. The cubic root of 51986453 is about 373.2186998354.

The spelling of 51986453 in words is "fifty-one million, nine hundred eighty-six thousand, four hundred fifty-three".