29320055381 has 2 divisors, whose sum is σ = 29320055382. Its totient is φ = 29320055380.

The previous prime is 29320055287. The next prime is 29320055407. The reversal of 29320055381 is 18355002392.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21773658481 + 7546396900 = 147559^2 + 86870^2 .

It is a cyclic number.

It is not a de Polignac number, because 29320055381 - 2²² = 29315861077 is a prime.

It is a super-3 number, since 3×29320055381³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29320055881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14660027690 + 14660027691.

It is an arithmetic number, because the mean of its divisors is an integer number (14660027691).

Almost surely, 2^29320055381 is an apocalyptic number.

It is an amenable number.

29320055381 is a deficient number, since it is larger than the sum of its proper divisors (1).

29320055381 is an equidigital number, since it uses as much as digits as its factorization.

29320055381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 29320055381 in words is "twenty-nine billion, three hundred twenty million, fifty-five thousand, three hundred eighty-one".