52138841 has 2 divisors, whose sum is σ = 52138842. Its totient is φ = 52138840.

The previous prime is 52138819. The next prime is 52138843. The reversal of 52138841 is 14883125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29376400 + 22762441 = 5420^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 52138841 - 2⁶ = 52138777 is a prime.

Together with 52138843, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 52138798 and 52138807.

It is not a weakly prime, because it can be changed into another prime (52138843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26069420 + 26069421.

It is an arithmetic number, because the mean of its divisors is an integer number (26069421).

Almost surely, 2^52138841 is an apocalyptic number.

It is an amenable number.

52138841 is a deficient number, since it is larger than the sum of its proper divisors (1).

52138841 is an equidigital number, since it uses as much as digits as its factorization.

52138841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 32.

The square root of 52138841 is about 7220.7230247393. The cubic root of 52138841 is about 373.5830163486.

The spelling of 52138841 in words is "fifty-two million, one hundred thirty-eight thousand, eight hundred forty-one".