53164691 has 2 divisors, whose sum is σ = 53164692. Its totient is φ = 53164690.

The previous prime is 53164687. The next prime is 53164697. The reversal of 53164691 is 19646135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53164691 - 2² = 53164687 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53164697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26582345 + 26582346.

It is an arithmetic number, because the mean of its divisors is an integer number (26582346).

Almost surely, 2^53164691 is an apocalyptic number.

53164691 is a deficient number, since it is larger than the sum of its proper divisors (1).

53164691 is an equidigital number, since it uses as much as digits as its factorization.

53164691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 53164691 is about 7291.4121403196. The cubic root of 53164691 is about 376.0172463607.

The spelling of 53164691 in words is "fifty-three million, one hundred sixty-four thousand, six hundred ninety-one".