2538183821 has 2 divisors, whose sum is σ = 2538183822. Its totient is φ = 2538183820.

The previous prime is 2538183763. The next prime is 2538183853. The reversal of 2538183821 is 1283818352.

2538183821 is digitally balanced in base 2, because in such base 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., 2121615721 + 416568100 = 46061^2 + 20410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2538183821 - 2²² = 2533989517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2538183871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269091910 + 1269091911.

It is an arithmetic number, because the mean of its divisors is an integer number (1269091911).

Almost surely, 2^2538183821 is an apocalyptic number.

It is an amenable number.

2538183821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538183821 is an equidigital number, since it uses as much as digits as its factorization.

2538183821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 41.

The square root of 2538183821 is about 50380.3912350827. The cubic root of 2538183821 is about 1364.0837139348.

The spelling of 2538183821 in words is "two billion, five hundred thirty-eight million, one hundred eighty-three thousand, eight hundred twenty-one".