53175420491 has 2 divisors, whose sum is σ = 53175420492. Its totient is φ = 53175420490.

The previous prime is 53175420449. The next prime is 53175420509. The reversal of 53175420491 is 19402457135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53175420491 is a prime.

It is not a weakly prime, because it can be changed into another prime (53175420401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26587710245 + 26587710246.

It is an arithmetic number, because the mean of its divisors is an integer number (26587710246).

Almost surely, 2^53175420491 is an apocalyptic number.

53175420491 is a deficient number, since it is larger than the sum of its proper divisors (1).

53175420491 is an equidigital number, since it uses as much as digits as its factorization.

53175420491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 53175420491 in words is "fifty-three billion, one hundred seventy-five million, four hundred twenty thousand, four hundred ninety-one".