215802880253 has 2 divisors, whose sum is σ = 215802880254. Its totient is φ = 215802880252.

The previous prime is 215802880243. The next prime is 215802880301. The reversal of 215802880253 is 352088208512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169679734084 + 46123146169 = 411922^2 + 214763^2 .

It is a cyclic number.

It is not a de Polignac number, because 215802880253 - 2⁸ = 215802879997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215802880243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107901440126 + 107901440127.

It is an arithmetic number, because the mean of its divisors is an integer number (107901440127).

Almost surely, 2^215802880253 is an apocalyptic number.

It is an amenable number.

215802880253 is a deficient number, since it is larger than the sum of its proper divisors (1).

215802880253 is an equidigital number, since it uses as much as digits as its factorization.

215802880253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 215802880253 in words is "two hundred fifteen billion, eight hundred two million, eight hundred eighty thousand, two hundred fifty-three".