51503230453 has 2 divisors, whose sum is σ = 51503230454. Its totient is φ = 51503230452.

The previous prime is 51503230451. The next prime is 51503230459. The reversal of 51503230453 is 35403230515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47905390129 + 3597840324 = 218873^2 + 59982^2 .

It is a cyclic number.

It is not a de Polignac number, because 51503230453 - 2¹ = 51503230451 is a prime.

Together with 51503230451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51503230451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25751615226 + 25751615227.

It is an arithmetic number, because the mean of its divisors is an integer number (25751615227).

Almost surely, 2^51503230453 is an apocalyptic number.

It is an amenable number.

51503230453 is a deficient number, since it is larger than the sum of its proper divisors (1).

51503230453 is an equidigital number, since it uses as much as digits as its factorization.

51503230453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 51503230453 its reverse (35403230515), we get a palindrome (86906460968).

The spelling of 51503230453 in words is "fifty-one billion, five hundred three million, two hundred thirty thousand, four hundred fifty-three".