53556091 has 2 divisors, whose sum is σ = 53556092. Its totient is φ = 53556090.

The previous prime is 53556089. The next prime is 53556157. The reversal of 53556091 is 19065535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53556091 - 2¹ = 53556089 is a prime.

Together with 53556089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (53556031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26778045 + 26778046.

It is an arithmetic number, because the mean of its divisors is an integer number (26778046).

Almost surely, 2^53556091 is an apocalyptic number.

53556091 is a deficient number, since it is larger than the sum of its proper divisors (1).

53556091 is an equidigital number, since it uses as much as digits as its factorization.

53556091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 53556091 is about 7318.2027165145. The cubic root of 53556091 is about 376.9377411044.

The spelling of 53556091 in words is "fifty-three million, five hundred fifty-six thousand, ninety-one".