51435031253 has 2 divisors, whose sum is σ = 51435031254. Its totient is φ = 51435031252.

The previous prime is 51435031247. The next prime is 51435031259. The reversal of 51435031253 is 35213053415.

It is a balanced prime because it is at equal distance from previous prime (51435031247) and next prime (51435031259).

It can be written as a sum of positive squares in only one way, i.e., 46999204849 + 4435826404 = 216793^2 + 66602^2 .

It is a cyclic number.

It is not a de Polignac number, because 51435031253 - 2¹² = 51435027157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51435031259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717515626 + 25717515627.

It is an arithmetic number, because the mean of its divisors is an integer number (25717515627).

Almost surely, 2^51435031253 is an apocalyptic number.

It is an amenable number.

51435031253 is a deficient number, since it is larger than the sum of its proper divisors (1).

51435031253 is an equidigital number, since it uses as much as digits as its factorization.

51435031253 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 32.

Adding to 51435031253 its reverse (35213053415), we get a palindrome (86648084668).

The spelling of 51435031253 in words is "fifty-one billion, four hundred thirty-five million, thirty-one thousand, two hundred fifty-three".