53365919 has 2 divisors, whose sum is σ = 53365920. Its totient is φ = 53365918.

The previous prime is 53365901. The next prime is 53365933. The reversal of 53365919 is 91956335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53365919 - 2¹⁶ = 53300383 is a prime.

It is a super-3 number, since 3×53365919³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53365219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26682959 + 26682960.

It is an arithmetic number, because the mean of its divisors is an integer number (26682960).

Almost surely, 2^53365919 is an apocalyptic number.

53365919 is a deficient number, since it is larger than the sum of its proper divisors (1).

53365919 is an equidigital number, since it uses as much as digits as its factorization.

53365919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 41.

The square root of 53365919 is about 7305.1980808189. The cubic root of 53365919 is about 376.4910566609.

The spelling of 53365919 in words is "fifty-three million, three hundred sixty-five thousand, nine hundred nineteen".