53101891 has 2 divisors, whose sum is σ = 53101892. Its totient is φ = 53101890.

The previous prime is 53101877. The next prime is 53101901. The reversal of 53101891 is 19810135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53101891 - 2⁵ = 53101859 is a prime.

It is equal to p_3175804 and since 53101891 and 3175804 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (53101091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26550945 + 26550946.

It is an arithmetic number, because the mean of its divisors is an integer number (26550946).

Almost surely, 2^53101891 is an apocalyptic number.

53101891 is a deficient number, since it is larger than the sum of its proper divisors (1).

53101891 is an equidigital number, since it uses as much as digits as its factorization.

53101891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 53101891 is about 7287.1044318028. The cubic root of 53101891 is about 375.8691331012.

The spelling of 53101891 in words is "fifty-three million, one hundred one thousand, eight hundred ninety-one".