10255921 has 8 divisors (see below), whose sum is σ = 11082344. Its totient is φ = 9434880.

The previous prime is 10255909. The next prime is 10255939. The reversal of 10255921 is 12955201.

10255921 = 2264² + 2265².

10255921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 245025 + 10010896 = 495^2 + 3164^2 .

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

It is not a de Polignac number, because 10255921 - 2²¹ = 8158769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10255951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3211 + ... + 5551.

It is an arithmetic number, because the mean of its divisors is an integer number (1385293).

Almost surely, 2^10255921 is an apocalyptic number.

10255921 is the 2265-th centered square number.

It is an amenable number.

10255921 is a deficient number, since it is larger than the sum of its proper divisors (826423).

10255921 is a wasteful number, since it uses less digits than its factorization.

10255921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 10255921 is about 3202.4866900582. The cubic root of 10255921 is about 217.2658933507.

The spelling of 10255921 in words is "ten million, two hundred fifty-five thousand, nine hundred twenty-one".