52152152105621 has 2 divisors, whose sum is σ = 52152152105622. Its totient is φ = 52152152105620.

The previous prime is 52152152105617. The next prime is 52152152105653. The reversal of 52152152105621 is 12650125125125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28239807604996 + 23912344500625 = 5314114^2 + 4890025^2 .

It is a cyclic number.

It is not a de Polignac number, because 52152152105621 - 2² = 52152152105617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52152152105021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26076076052810 + 26076076052811.

It is an arithmetic number, because the mean of its divisors is an integer number (26076076052811).

Almost surely, 2^{52152152105621} is an apocalyptic number.

It is an amenable number.

52152152105621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52152152105621 is an equidigital number, since it uses as much as digits as its factorization.

52152152105621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 52152152105621 in words is "fifty-two trillion, one hundred fifty-two billion, one hundred fifty-two million, one hundred five thousand, six hundred twenty-one".