215251425300013 has 2 divisors, whose sum is σ = 215251425300014. Its totient is φ = 215251425300012.

The previous prime is 215251425300001. The next prime is 215251425300019. The reversal of 215251425300013 is 310003524152512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159244132924809 + 56007292375204 = 12619197^2 + 7483802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215251425300013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215251425300019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107625712650006 + 107625712650007.

It is an arithmetic number, because the mean of its divisors is an integer number (107625712650007).

Almost surely, 2^{215251425300013} is an apocalyptic number.

It is an amenable number.

215251425300013 is a deficient number, since it is larger than the sum of its proper divisors (1).

215251425300013 is an equidigital number, since it uses as much as digits as its factorization.

215251425300013 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.

Adding to 215251425300013 its reverse (310003524152512), we get a palindrome (525254949452525).

The spelling of 215251425300013 in words is "two hundred fifteen trillion, two hundred fifty-one billion, four hundred twenty-five million, three hundred thousand, thirteen".