53213650667 has 2 divisors, whose sum is σ = 53213650668. Its totient is φ = 53213650666.

The previous prime is 53213650657. The next prime is 53213650673. The reversal of 53213650667 is 76605631235.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53213650667 - 2¹² = 53213646571 is a prime.

It is not a weakly prime, because it can be changed into another prime (53213650657) 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, 26606825333 + 26606825334.

It is an arithmetic number, because the mean of its divisors is an integer number (26606825334).

Almost surely, 2^53213650667 is an apocalyptic number.

53213650667 is a deficient number, since it is larger than the sum of its proper divisors (1).

53213650667 is an equidigital number, since it uses as much as digits as its factorization.

53213650667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 53213650667 in words is "fifty-three billion, two hundred thirteen million, six hundred fifty thousand, six hundred sixty-seven".