8553381 has 8 divisors (see below), whose sum is σ = 11421024. Its totient is φ = 5694000.

The previous prime is 8553373. The next prime is 8553403. The reversal of 8553381 is 1833558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8553381 - 2³ = 8553373 is a prime.

It is a super-2 number, since 2×8553381² = 146320653062322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8553301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006 + ... + 4256.

It is an arithmetic number, because the mean of its divisors is an integer number (1427628).

Almost surely, 2^8553381 is an apocalyptic number.

It is an amenable number.

8553381 is a deficient number, since it is larger than the sum of its proper divisors (2867643).

8553381 is a wasteful number, since it uses less digits than its factorization.

8553381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131.

The product of its digits is 14400, while the sum is 33.

The square root of 8553381 is about 2924.6163851008. The cubic root of 8553381 is about 204.5090851072.

The spelling of 8553381 in words is "eight million, five hundred fifty-three thousand, three hundred eighty-one".