53326391 has 2 divisors, whose sum is σ = 53326392. Its totient is φ = 53326390.

The previous prime is 53326381. The next prime is 53326393. The reversal of 53326391 is 19362335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53326391 - 2⁶ = 53326327 is a prime.

Together with 53326393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53326393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26663195 + 26663196.

It is an arithmetic number, because the mean of its divisors is an integer number (26663196).

Almost surely, 2^53326391 is an apocalyptic number.

53326391 is a deficient number, since it is larger than the sum of its proper divisors (1).

53326391 is an equidigital number, since it uses as much as digits as its factorization.

53326391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 32.

The square root of 53326391 is about 7302.4921088626. The cubic root of 53326391 is about 376.3980783792.

The spelling of 53326391 in words is "fifty-three million, three hundred twenty-six thousand, three hundred ninety-one".