53213522069 has 2 divisors, whose sum is σ = 53213522070. Its totient is φ = 53213522068.

The previous prime is 53213522041. The next prime is 53213522093. The reversal of 53213522069 is 96022531235.

53213522069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50458636900 + 2754885169 = 224630^2 + 52487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53213522069 is a prime.

It is a super-2 number, since 2×53213522069² (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 (53213522029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606761034 + 26606761035.

It is an arithmetic number, because the mean of its divisors is an integer number (26606761035).

Almost surely, 2^53213522069 is an apocalyptic number.

It is an amenable number.

53213522069 is a deficient number, since it is larger than the sum of its proper divisors (1).

53213522069 is an equidigital number, since it uses as much as digits as its factorization.

53213522069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 38.

The spelling of 53213522069 in words is "fifty-three billion, two hundred thirteen million, five hundred twenty-two thousand, sixty-nine".