10722557 has 4 divisors (see below), whose sum is σ = 10731996. Its totient is φ = 10713120.

The previous prime is 10722553. The next prime is 10722619. The reversal of 10722557 is 75522701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 900601 = 3134^2 + 949^2 .

It is a cyclic number.

It is not a de Polignac number, because 10722557 - 2² = 10722553 is a prime.

It is a super-2 number, since 2×10722557² = 229946457236498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10722553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738 + ... + 5379.

It is an arithmetic number, because the mean of its divisors is an integer number (2682999).

Almost surely, 2^10722557 is an apocalyptic number.

It is an amenable number.

10722557 is a deficient number, since it is larger than the sum of its proper divisors (9439).

10722557 is an equidigital number, since it uses as much as digits as its factorization.

10722557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9438.

The product of its (nonzero) digits is 4900, while the sum is 29.

The square root of 10722557 is about 3274.5315695531. The cubic root of 10722557 is about 220.5122841489.

The spelling of 10722557 in words is "ten million, seven hundred twenty-two thousand, five hundred fifty-seven".