53366591 has 2 divisors, whose sum is σ = 53366592. Its totient is φ = 53366590.

The previous prime is 53366567. The next prime is 53366597. The reversal of 53366591 is 19566335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53366591 - 2⁶ = 53366527 is a prime.

It is a super-2 number, since 2×53366591² = 5695986069922562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53366597) 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, 26683295 + 26683296.

It is an arithmetic number, because the mean of its divisors is an integer number (26683296).

Almost surely, 2^53366591 is an apocalyptic number.

53366591 is a deficient number, since it is larger than the sum of its proper divisors (1).

53366591 is an equidigital number, since it uses as much as digits as its factorization.

53366591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 38.

The square root of 53366591 is about 7305.2440753201. The cubic root of 53366591 is about 376.4926369511.

The spelling of 53366591 in words is "fifty-three million, three hundred sixty-six thousand, five hundred ninety-one".