52412051381 has 2 divisors, whose sum is σ = 52412051382. Its totient is φ = 52412051380.

The previous prime is 52412051371. The next prime is 52412051383. The reversal of 52412051381 is 18315021425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39358988881 + 13053062500 = 198391^2 + 114250^2 .

It is a cyclic number.

It is not a de Polignac number, because 52412051381 - 2¹⁰ = 52412050357 is a prime.

It is a super-2 number, since 2×52412051381² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 52412051383, it forms a pair of twin primes.

It is a Chen 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 (52412051383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26206025690 + 26206025691.

It is an arithmetic number, because the mean of its divisors is an integer number (26206025691).

Almost surely, 2^52412051381 is an apocalyptic number.

It is an amenable number.

52412051381 is a deficient number, since it is larger than the sum of its proper divisors (1).

52412051381 is an equidigital number, since it uses as much as digits as its factorization.

52412051381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 52412051381 in words is "fifty-two billion, four hundred twelve million, fifty-one thousand, three hundred eighty-one".