53738917 has 2 divisors, whose sum is σ = 53738918. Its totient is φ = 53738916.

The previous prime is 53738857. The next prime is 53738939. The reversal of 53738917 is 71983735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51753636 + 1985281 = 7194^2 + 1409^2 .

It is a cyclic number.

It is not a de Polignac number, because 53738917 - 2¹¹ = 53736869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53738017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26869458 + 26869459.

It is an arithmetic number, because the mean of its divisors is an integer number (26869459).

Almost surely, 2^53738917 is an apocalyptic number.

It is an amenable number.

53738917 is a deficient number, since it is larger than the sum of its proper divisors (1).

53738917 is an equidigital number, since it uses as much as digits as its factorization.

53738917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 43.

The square root of 53738917 is about 7330.6832560137. The cubic root of 53738917 is about 377.3661750984.

The spelling of 53738917 in words is "fifty-three million, seven hundred thirty-eight thousand, nine hundred seventeen".