53885591 has 2 divisors, whose sum is σ = 53885592. Its totient is φ = 53885590.

The previous prime is 53885543. The next prime is 53885593. The reversal of 53885591 is 19558835.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53885591 is a prime.

Together with 53885593, 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 (53885593) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26942795 + 26942796.

It is an arithmetic number, because the mean of its divisors is an integer number (26942796).

Almost surely, 2^53885591 is an apocalyptic number.

53885591 is a deficient number, since it is larger than the sum of its proper divisors (1).

53885591 is an equidigital number, since it uses as much as digits as its factorization.

53885591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 44.

The square root of 53885591 is about 7340.6805542811. The cubic root of 53885591 is about 377.7091886210.

The spelling of 53885591 in words is "fifty-three million, eight hundred eighty-five thousand, five hundred ninety-one".