53321121253 has 2 divisors, whose sum is σ = 53321121254. Its totient is φ = 53321121252.

The previous prime is 53321121251. The next prime is 53321121281. The reversal of 53321121253 is 35212112335.

It is an a-pointer prime, because the next prime (53321121281) can be obtained adding 53321121253 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52204024324 + 1117096929 = 228482^2 + 33423^2 .

It is a cyclic number.

It is not a de Polignac number, because 53321121253 - 2¹ = 53321121251 is a prime.

Together with 53321121251, 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 (53321121251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26660560626 + 26660560627.

It is an arithmetic number, because the mean of its divisors is an integer number (26660560627).

Almost surely, 2^53321121253 is an apocalyptic number.

It is an amenable number.

53321121253 is a deficient number, since it is larger than the sum of its proper divisors (1).

53321121253 is an equidigital number, since it uses as much as digits as its factorization.

53321121253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

Adding to 53321121253 its reverse (35212112335), we get a palindrome (88533233588).

The spelling of 53321121253 in words is "fifty-three billion, three hundred twenty-one million, one hundred twenty-one thousand, two hundred fifty-three".