52512550381 has 2 divisors, whose sum is σ = 52512550382. Its totient is φ = 52512550380.

The previous prime is 52512550331. The next prime is 52512550397. The reversal of 52512550381 is 18305521525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34134410025 + 18378140356 = 184755^2 + 135566^2 .

It is a cyclic number.

It is not a de Polignac number, because 52512550381 - 2¹⁵ = 52512517613 is a prime.

It is a super-2 number, since 2×52512550381² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52512550381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52512550331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26256275190 + 26256275191.

It is an arithmetic number, because the mean of its divisors is an integer number (26256275191).

Almost surely, 2^52512550381 is an apocalyptic number.

It is an amenable number.

52512550381 is a deficient number, since it is larger than the sum of its proper divisors (1).

52512550381 is an equidigital number, since it uses as much as digits as its factorization.

52512550381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 52512550381 in words is "fifty-two billion, five hundred twelve million, five hundred fifty thousand, three hundred eighty-one".