53215671667 has 2 divisors, whose sum is σ = 53215671668. Its totient is φ = 53215671666.

The previous prime is 53215671623. The next prime is 53215671673. The reversal of 53215671667 is 76617651235.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53215671667 - 2³¹ = 51068188019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53215671667.

It is not a weakly prime, because it can be changed into another prime (53215671697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26607835833 + 26607835834.

It is an arithmetic number, because the mean of its divisors is an integer number (26607835834).

Almost surely, 2^53215671667 is an apocalyptic number.

53215671667 is a deficient number, since it is larger than the sum of its proper divisors (1).

53215671667 is an equidigital number, since it uses as much as digits as its factorization.

53215671667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 49.

The spelling of 53215671667 in words is "fifty-three billion, two hundred fifteen million, six hundred seventy-one thousand, six hundred sixty-seven".