51251130523 has 2 divisors, whose sum is σ = 51251130524. Its totient is φ = 51251130522.

The previous prime is 51251130481. The next prime is 51251130569. The reversal of 51251130523 is 32503115215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51251130523 - 2¹³ = 51251122331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51251130491 and 51251130500.

It is not a weakly prime, because it can be changed into another prime (51251133523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25625565261 + 25625565262.

It is an arithmetic number, because the mean of its divisors is an integer number (25625565262).

Almost surely, 2^51251130523 is an apocalyptic number.

51251130523 is a deficient number, since it is larger than the sum of its proper divisors (1).

51251130523 is an equidigital number, since it uses as much as digits as its factorization.

51251130523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 51251130523 its reverse (32503115215), we get a palindrome (83754245738).

The spelling of 51251130523 in words is "fifty-one billion, two hundred fifty-one million, one hundred thirty thousand, five hundred twenty-three".