51523453253 has 2 divisors, whose sum is σ = 51523453254. Its totient is φ = 51523453252.

The previous prime is 51523453207. The next prime is 51523453283. The reversal of 51523453253 is 35235432515.

51523453253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44343094084 + 7180359169 = 210578^2 + 84737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51523453253 is a prime.

It is a super-2 number, since 2×51523453253² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51523453283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25761726626 + 25761726627.

It is an arithmetic number, because the mean of its divisors is an integer number (25761726627).

Almost surely, 2^51523453253 is an apocalyptic number.

It is an amenable number.

51523453253 is a deficient number, since it is larger than the sum of its proper divisors (1).

51523453253 is an equidigital number, since it uses as much as digits as its factorization.

51523453253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270000, while the sum is 38.

Adding to 51523453253 its reverse (35235432515), we get a palindrome (86758885768).

The spelling of 51523453253 in words is "fifty-one billion, five hundred twenty-three million, four hundred fifty-three thousand, two hundred fifty-three".