53325691 has 2 divisors, whose sum is σ = 53325692. Its totient is φ = 53325690.

The previous prime is 53325659. The next prime is 53325721. The reversal of 53325691 is 19652335.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53325691 - 2⁵ = 53325659 is a prime.

It is not a weakly prime, because it can be changed into another prime (53325641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26662845 + 26662846.

It is an arithmetic number, because the mean of its divisors is an integer number (26662846).

Almost surely, 2^53325691 is an apocalyptic number.

53325691 is a deficient number, since it is larger than the sum of its proper divisors (1).

53325691 is an equidigital number, since it uses as much as digits as its factorization.

53325691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 34.

The square root of 53325691 is about 7302.4441798620. Note that the first 3 decimals coincide. The cubic root of 53325691 is about 376.3964314160.

The spelling of 53325691 in words is "fifty-three million, three hundred twenty-five thousand, six hundred ninety-one".