8722553 has 8 divisors (see below), whose sum is σ = 10089408. Its totient is φ = 7385904.

The previous prime is 8722541. The next prime is 8722603. The reversal of 8722553 is 3552278.

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

It is a cyclic number.

It is not a de Polignac number, because 8722553 - 2⁸ = 8722297 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8752553) 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, 6926 + ... + 8087.

It is an arithmetic number, because the mean of its divisors is an integer number (1261176).

Almost surely, 2^8722553 is an apocalyptic number.

8722553 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

8722553 is a deficient number, since it is larger than the sum of its proper divisors (1366855).

8722553 is a wasteful number, since it uses less digits than its factorization.

8722553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15103.

The product of its digits is 16800, while the sum is 32.

The square root of 8722553 is about 2953.3968578571. The cubic root of 8722553 is about 205.8485785157.

It can be divided in two parts, 87225 and 53, that added together give a palindrome (87278).

The spelling of 8722553 in words is "eight million, seven hundred twenty-two thousand, five hundred fifty-three".