2538231893 has 2 divisors, whose sum is σ = 2538231894. Its totient is φ = 2538231892.

The previous prime is 2538231887. The next prime is 2538231923. The reversal of 2538231893 is 3981328352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2500200004 + 38031889 = 50002^2 + 6167^2 .

It is a cyclic number.

It is not a de Polignac number, because 2538231893 - 2¹⁰ = 2538230869 is a prime.

It is a super-2 number, since 2×2538231893² = 12885242285284726898, which 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 (2538231833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269115946 + 1269115947.

It is an arithmetic number, because the mean of its divisors is an integer number (1269115947).

Almost surely, 2^2538231893 is an apocalyptic number.

It is an amenable number.

2538231893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538231893 is an equidigital number, since it uses as much as digits as its factorization.

2538231893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 2538231893 is about 50380.8683232038. The cubic root of 2538231893 is about 1364.0923255804.

It can be divided in two parts, 25382 and 31893, that added together give a palindrome (57275).

The spelling of 2538231893 in words is "two billion, five hundred thirty-eight million, two hundred thirty-one thousand, eight hundred ninety-three".