215251425300001 has 2 divisors, whose sum is σ = 215251425300002. Its totient is φ = 215251425300000.

The previous prime is 215251425299983. The next prime is 215251425300013. The reversal of 215251425300001 is 100003524152512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212378129093601 + 2873296206400 = 14573199^2 + 1695080^2 .

It is a cyclic number.

It is not a de Polignac number, because 215251425300001 - 2²⁵ = 215251391745569 is a prime.

It is not a weakly prime, because it can be changed into another prime (215251425300601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107625712650000 + 107625712650001.

It is an arithmetic number, because the mean of its divisors is an integer number (107625712650001).

Almost surely, 2^{215251425300001} is an apocalyptic number.

It is an amenable number.

215251425300001 is a deficient number, since it is larger than the sum of its proper divisors (1).

215251425300001 is an equidigital number, since it uses as much as digits as its factorization.

215251425300001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 215251425300001 its reverse (100003524152512), we get a palindrome (315254949452513).

The spelling of 215251425300001 in words is "two hundred fifteen trillion, two hundred fifty-one billion, four hundred twenty-five million, three hundred thousand, one".