10525553021 has 2 divisors, whose sum is σ = 10525553022. Its totient is φ = 10525553020.

The previous prime is 10525553011. The next prime is 10525553033. The reversal of 10525553021 is 12035552501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8098020121 + 2427532900 = 89989^2 + 49270^2 .

It is a cyclic number.

It is not a de Polignac number, because 10525553021 - 2³⁰ = 9451811197 is a prime.

It is a super-2 number, since 2×10525553021² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10525553011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5262776510 + 5262776511.

It is an arithmetic number, because the mean of its divisors is an integer number (5262776511).

Almost surely, 2^10525553021 is an apocalyptic number.

It is an amenable number.

10525553021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10525553021 is an equidigital number, since it uses as much as digits as its factorization.

10525553021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 10525553021 in words is "ten billion, five hundred twenty-five million, five hundred fifty-three thousand, twenty-one".