8253101861 has 2 divisors, whose sum is σ = 8253101862. Its totient is φ = 8253101860.

The previous prime is 8253101833. The next prime is 8253101881. The reversal of 8253101861 is 1681013528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4412944900 + 3840156961 = 66430^2 + 61969^2 .

It is a cyclic number.

It is not a de Polignac number, because 8253101861 - 2¹⁸ = 8252839717 is a prime.

It is a super-2 number, since 2×8253101861² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8253101881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126550930 + 4126550931.

It is an arithmetic number, because the mean of its divisors is an integer number (4126550931).

Almost surely, 2^8253101861 is an apocalyptic number.

It is an amenable number.

8253101861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8253101861 is an equidigital number, since it uses as much as digits as its factorization.

8253101861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 8253101861 is about 90846.5842010584. The cubic root of 8253101861 is about 2020.8732182729.

The spelling of 8253101861 in words is "eight billion, two hundred fifty-three million, one hundred one thousand, eight hundred sixty-one".