51363253 has 2 divisors, whose sum is σ = 51363254. Its totient is φ = 51363252.

The previous prime is 51363241. The next prime is 51363269. The reversal of 51363253 is 35236315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26142769 + 25220484 = 5113^2 + 5022^2 .

It is a cyclic number.

It is not a de Polignac number, because 51363253 - 2²⁵ = 17808821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51363233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25681626 + 25681627.

It is an arithmetic number, because the mean of its divisors is an integer number (25681627).

Almost surely, 2^51363253 is an apocalyptic number.

It is an amenable number.

51363253 is a deficient number, since it is larger than the sum of its proper divisors (1).

51363253 is an equidigital number, since it uses as much as digits as its factorization.

51363253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 28.

The square root of 51363253 is about 7166.8160992173. The cubic root of 51363253 is about 371.7213511427.

Adding to 51363253 its reverse (35236315), we get a palindrome (86599568).

The spelling of 51363253 in words is "fifty-one million, three hundred sixty-three thousand, two hundred fifty-three".