53146386247 has 2 divisors, whose sum is σ = 53146386248. Its totient is φ = 53146386246.

The previous prime is 53146386217. The next prime is 53146386257. The reversal of 53146386247 is 74268364135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53146386247 is a prime.

It is a super-2 number, since 2×53146386247² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53146386247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53146386217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26573193123 + 26573193124.

It is an arithmetic number, because the mean of its divisors is an integer number (26573193124).

Almost surely, 2^53146386247 is an apocalyptic number.

53146386247 is a deficient number, since it is larger than the sum of its proper divisors (1).

53146386247 is an equidigital number, since it uses as much as digits as its factorization.

53146386247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 49.

The spelling of 53146386247 in words is "fifty-three billion, one hundred forty-six million, three hundred eighty-six thousand, two hundred forty-seven".