5533903381 has 2 divisors, whose sum is σ = 5533903382. Its totient is φ = 5533903380.

The previous prime is 5533903327. The next prime is 5533903421. The reversal of 5533903381 is 1833093355.

It is an a-pointer prime, because the next prime (5533903421) can be obtained adding 5533903381 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4728762756 + 805140625 = 68766^2 + 28375^2 .

It is a cyclic number.

It is not a de Polignac number, because 5533903381 - 2¹³ = 5533895189 is a prime.

It is a super-2 number, since 2×5533903381² = 61248173260486462322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5533906381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766951690 + 2766951691.

It is an arithmetic number, because the mean of its divisors is an integer number (2766951691).

Almost surely, 2^5533903381 is an apocalyptic number.

5533903381 is the 47049-th centered pentagonal number.

It is an amenable number.

5533903381 is a deficient number, since it is larger than the sum of its proper divisors (1).

5533903381 is an equidigital number, since it uses as much as digits as its factorization.

5533903381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 40.

The square root of 5533903381 is about 74390.2102497365. The cubic root of 5533903381 is about 1768.7937327798.

The spelling of 5533903381 in words is "five billion, five hundred thirty-three million, nine hundred three thousand, three hundred eighty-one".