10421559 has 12 divisors (see below), whose sum is σ = 15139800. Its totient is φ = 6907824.

The previous prime is 10421539. The next prime is 10421569. The reversal of 10421559 is 95512401.

10421559 is a `hidden beast` number, since 104 + 2 + 1 + 559 = 666.

It is not a de Polignac number, because 10421559 - 2¹⁶ = 10356023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421539) 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 11 ways as a sum of consecutive naturals, for example, 1624 + ... + 4845.

It is an arithmetic number, because the mean of its divisors is an integer number (1261650).

Almost surely, 2^10421559 is an apocalyptic number.

10421559 is a deficient number, since it is larger than the sum of its proper divisors (4718241).

10421559 is a wasteful number, since it uses less digits than its factorization.

10421559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654 (or 6651 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 10421559 is about 3228.2439498898. The cubic root of 10421559 is about 218.4293016074.

It can be divided in two parts, 1042 and 1559, that added together give a square (2601 = 51²).

The spelling of 10421559 in words is "ten million, four hundred twenty-one thousand, five hundred fifty-nine".