53167391 has 2 divisors, whose sum is σ = 53167392. Its totient is φ = 53167390.

The previous prime is 53167379. The next prime is 53167397. The reversal of 53167391 is 19376135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53167391 - 2⁶ = 53167327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53167397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26583695 + 26583696.

It is an arithmetic number, because the mean of its divisors is an integer number (26583696).

Almost surely, 2^53167391 is an apocalyptic number.

53167391 is a deficient number, since it is larger than the sum of its proper divisors (1).

53167391 is an equidigital number, since it uses as much as digits as its factorization.

53167391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 35.

The square root of 53167391 is about 7291.5972872890. The cubic root of 53167391 is about 376.0236116717.

The spelling of 53167391 in words is "fifty-three million, one hundred sixty-seven thousand, three hundred ninety-one".