9953572261 has 2 divisors, whose sum is σ = 9953572262. Its totient is φ = 9953572260.

The previous prime is 9953572171. The next prime is 9953572283. The reversal of 9953572261 is 1622753599.

9953572261 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7882776225 + 2070796036 = 88785^2 + 45506^2 .

It is a cyclic number.

It is not a de Polignac number, because 9953572261 - 2¹³ = 9953564069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9953572061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4976786130 + 4976786131.

It is an arithmetic number, because the mean of its divisors is an integer number (4976786131).

Almost surely, 2^9953572261 is an apocalyptic number.

It is an amenable number.

9953572261 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953572261 is an equidigital number, since it uses as much as digits as its factorization.

9953572261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1020600, while the sum is 49.

The square root of 9953572261 is about 99767.5912358317. The cubic root of 9953572261 is about 2151.0953323439.

The spelling of 9953572261 in words is "nine billion, nine hundred fifty-three million, five hundred seventy-two thousand, two hundred sixty-one".