53250622981 has 2 divisors, whose sum is σ = 53250622982. Its totient is φ = 53250622980.

The previous prime is 53250622969. The next prime is 53250623021. The reversal of 53250622981 is 18922605235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36429829956 + 16820793025 = 190866^2 + 129695^2 .

It is a cyclic number.

It is not a de Polignac number, because 53250622981 - 2⁵ = 53250622949 is a prime.

It is a super-2 number, since 2×53250622981² (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 (53250622951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26625311490 + 26625311491.

It is an arithmetic number, because the mean of its divisors is an integer number (26625311491).

Almost surely, 2^53250622981 is an apocalyptic number.

It is an amenable number.

53250622981 is a deficient number, since it is larger than the sum of its proper divisors (1).

53250622981 is an equidigital number, since it uses as much as digits as its factorization.

53250622981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 53250622981 in words is "fifty-three billion, two hundred fifty million, six hundred twenty-two thousand, nine hundred eighty-one".