53052541621 has 2 divisors, whose sum is σ = 53052541622. Its totient is φ = 53052541620.

The previous prime is 53052541609. The next prime is 53052541651. The reversal of 53052541621 is 12614525035.

53052541621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29005836721 + 24046704900 = 170311^2 + 155070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53052541621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53052541651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26526270810 + 26526270811.

It is an arithmetic number, because the mean of its divisors is an integer number (26526270811).

Almost surely, 2^53052541621 is an apocalyptic number.

It is an amenable number.

53052541621 is a deficient number, since it is larger than the sum of its proper divisors (1).

53052541621 is an equidigital number, since it uses as much as digits as its factorization.

53052541621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 53052541621 in words is "fifty-three billion, fifty-two million, five hundred forty-one thousand, six hundred twenty-one".