53871913 has 2 divisors, whose sum is σ = 53871914. Its totient is φ = 53871912.

The previous prime is 53871869. The next prime is 53871941. The reversal of 53871913 is 31917835.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30946969 + 22924944 = 5563^2 + 4788^2 .

It is a cyclic number.

It is not a de Polignac number, because 53871913 - 2⁹ = 53871401 is a prime.

It is not a weakly prime, because it can be changed into another prime (53871943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26935956 + 26935957.

It is an arithmetic number, because the mean of its divisors is an integer number (26935957).

Almost surely, 2^53871913 is an apocalyptic number.

It is an amenable number.

53871913 is a deficient number, since it is larger than the sum of its proper divisors (1).

53871913 is an equidigital number, since it uses as much as digits as its factorization.

53871913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 53871913 is about 7339.7488376647. The cubic root of 53871913 is about 377.6772274271.

The spelling of 53871913 in words is "fifty-three million, eight hundred seventy-one thousand, nine hundred thirteen".