202055253181 has 2 divisors, whose sum is σ = 202055253182. Its totient is φ = 202055253180.

The previous prime is 202055253131. The next prime is 202055253217. The reversal of 202055253181 is 181352550202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123839944281 + 78215308900 = 351909^2 + 279670^2 .

It is a cyclic number.

It is not a de Polignac number, because 202055253181 - 2⁷ = 202055253053 is a prime.

It is a super-2 number, since 2×202055253181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202055253131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101027626590 + 101027626591.

It is an arithmetic number, because the mean of its divisors is an integer number (101027626591).

Almost surely, 2^202055253181 is an apocalyptic number.

It is an amenable number.

202055253181 is a deficient number, since it is larger than the sum of its proper divisors (1).

202055253181 is an equidigital number, since it uses as much as digits as its factorization.

202055253181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 202055253181 in words is "two hundred two billion, fifty-five million, two hundred fifty-three thousand, one hundred eighty-one".