53233391 has 2 divisors, whose sum is σ = 53233392. Its totient is φ = 53233390.

The previous prime is 53233373. The next prime is 53233451. The reversal of 53233391 is 19333235.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53233391 - 2¹⁰ = 53232367 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53233321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26616695 + 26616696.

It is an arithmetic number, because the mean of its divisors is an integer number (26616696).

Almost surely, 2^53233391 is an apocalyptic number.

53233391 is a deficient number, since it is larger than the sum of its proper divisors (1).

53233391 is an equidigital number, since it uses as much as digits as its factorization.

53233391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 29.

The square root of 53233391 is about 7296.1216409816. The cubic root of 53233391 is about 376.1791411908.

The spelling of 53233391 in words is "fifty-three million, two hundred thirty-three thousand, three hundred ninety-one".