53033113381 has 2 divisors, whose sum is σ = 53033113382. Its totient is φ = 53033113380.

The previous prime is 53033113349. The next prime is 53033113409. The reversal of 53033113381 is 18331133035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35272220481 + 17760892900 = 187809^2 + 133270^2 .

It is a cyclic number.

It is not a de Polignac number, because 53033113381 - 2⁵ = 53033113349 is a prime.

It is a super-2 number, since 2×53033113381² (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 (53033113981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26516556690 + 26516556691.

It is an arithmetic number, because the mean of its divisors is an integer number (26516556691).

Almost surely, 2^53033113381 is an apocalyptic number.

It is an amenable number.

53033113381 is a deficient number, since it is larger than the sum of its proper divisors (1).

53033113381 is an equidigital number, since it uses as much as digits as its factorization.

53033113381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 53033113381 in words is "fifty-three billion, thirty-three million, one hundred thirteen thousand, three hundred eighty-one".