10280521 has 2 divisors, whose sum is σ = 10280522. Its totient is φ = 10280520.

The previous prime is 10280489. The next prime is 10280527. The reversal of 10280521 is 12508201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 546121 = 3120^2 + 739^2 .

It is an emirp because it is prime and its reverse (12508201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10280521 - 2⁵ = 10280489 is a prime.

It is a super-2 number, since 2×10280521² = 211378224062882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10280527) 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 as a sum of consecutive naturals, namely, 5140260 + 5140261.

It is an arithmetic number, because the mean of its divisors is an integer number (5140261).

Almost surely, 2^10280521 is an apocalyptic number.

It is an amenable number.

10280521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10280521 is an equidigital number, since it uses as much as digits as its factorization.

10280521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10280521 is about 3206.3251550646. The cubic root of 10280521 is about 217.4394670141.

Adding to 10280521 its reverse (12508201), we get a palindrome (22788722).

It can be divided in two parts, 10280 and 521, that added together give a palindrome (10801).

The spelling of 10280521 in words is "ten million, two hundred eighty thousand, five hundred twenty-one".