10548821 has 4 divisors (see below), whose sum is σ = 10773312. Its totient is φ = 10324332.

The previous prime is 10548817. The next prime is 10548833. The reversal of 10548821 is 12884501.

10548821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10548821 - 2² = 10548817 is a prime.

It is a super-2 number, since 2×10548821² = 222555248980082, 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 (10548841) 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, 112175 + ... + 112268.

It is an arithmetic number, because the mean of its divisors is an integer number (2693328).

Almost surely, 2^10548821 is an apocalyptic number.

It is an amenable number.

10548821 is a deficient number, since it is larger than the sum of its proper divisors (224491).

10548821 is an equidigital number, since it uses as much as digits as its factorization.

10548821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224490.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 10548821 is about 3247.8948566725. The cubic root of 10548821 is about 219.3148172723.

The spelling of 10548821 in words is "ten million, five hundred forty-eight thousand, eight hundred twenty-one".