10365521 has 4 divisors (see below), whose sum is σ = 10586112. Its totient is φ = 10144932.

The previous prime is 10365491. The next prime is 10365527. The reversal of 10365521 is 12556301.

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 10365521 - 2¹⁸ = 10103377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10365527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110225 + ... + 110318.

It is an arithmetic number, because the mean of its divisors is an integer number (2646528).

Almost surely, 2^10365521 is an apocalyptic number.

It is an amenable number.

10365521 is a deficient number, since it is larger than the sum of its proper divisors (220591).

10365521 is an equidigital number, since it uses as much as digits as its factorization.

10365521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220590.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 10365521 is about 3219.5529192731. The cubic root of 10365521 is about 218.0370907347.

The spelling of 10365521 in words is "ten million, three hundred sixty-five thousand, five hundred twenty-one".