10921025 has 6 divisors (see below), whose sum is σ = 13542102. Its totient is φ = 8736800.

The previous prime is 10920983. The next prime is 10921033. The reversal of 10921025 is 52012901.

It can be written as a sum of positive squares in 3 ways, for example, as 891136 + 10029889 = 944^2 + 3167^2 .

It is not a de Polignac number, because 10921025 - 2¹⁶ = 10855489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10920988 and 10921006.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218396 + ... + 218445.

It is an arithmetic number, because the mean of its divisors is an integer number (2257017).

Almost surely, 2^10921025 is an apocalyptic number.

It is an amenable number.

10921025 is a deficient number, since it is larger than the sum of its proper divisors (2621077).

10921025 is an equidigital number, since it uses as much as digits as its factorization.

10921025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436851 (or 436846 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 10921025 is about 3304.6974142877. The cubic root of 10921025 is about 221.8644913359.

Adding to 10921025 its reverse (52012901), we get a palindrome (62933926).

The spelling of 10921025 in words is "ten million, nine hundred twenty-one thousand, twenty-five".