36025545221 has 2 divisors, whose sum is σ = 36025545222. Its totient is φ = 36025545220.

The previous prime is 36025545217. The next prime is 36025545229. The reversal of 36025545221 is 12254552063.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23519596321 + 12505948900 = 153361^2 + 111830^2 .

It is a cyclic number.

It is not a de Polignac number, because 36025545221 - 2² = 36025545217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36025545229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18012772610 + 18012772611.

It is an arithmetic number, because the mean of its divisors is an integer number (18012772611).

Almost surely, 2^36025545221 is an apocalyptic number.

It is an amenable number.

36025545221 is a deficient number, since it is larger than the sum of its proper divisors (1).

36025545221 is an equidigital number, since it uses as much as digits as its factorization.

36025545221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 36025545221 in words is "thirty-six billion, twenty-five million, five hundred forty-five thousand, two hundred twenty-one".