53121507671 has 2 divisors, whose sum is σ = 53121507672. Its totient is φ = 53121507670.

The previous prime is 53121507661. The next prime is 53121507721. The reversal of 53121507671 is 17670512135.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53121507671 is a prime.

It is a super-2 number, since 2×53121507671² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53121507601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26560753835 + 26560753836.

It is an arithmetic number, because the mean of its divisors is an integer number (26560753836).

Almost surely, 2^53121507671 is an apocalyptic number.

53121507671 is a deficient number, since it is larger than the sum of its proper divisors (1).

53121507671 is an equidigital number, since it uses as much as digits as its factorization.

53121507671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 53121507671 in words is "fifty-three billion, one hundred twenty-one million, five hundred seven thousand, six hundred seventy-one".