53334991 has 2 divisors, whose sum is σ = 53334992. Its totient is φ = 53334990.

The previous prime is 53334979. The next prime is 53335021. The reversal of 53334991 is 19943335.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53334991 - 2⁵ = 53334959 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53334991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53334791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26667495 + 26667496.

It is an arithmetic number, because the mean of its divisors is an integer number (26667496).

Almost surely, 2^53334991 is an apocalyptic number.

53334991 is a deficient number, since it is larger than the sum of its proper divisors (1).

53334991 is an equidigital number, since it uses as much as digits as its factorization.

53334991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 37.

The square root of 53334991 is about 7303.0809251986. The cubic root of 53334991 is about 376.4183113222.

The spelling of 53334991 in words is "fifty-three million, three hundred thirty-four thousand, nine hundred ninety-one".