10525776217 has 4 divisors (see below), whose sum is σ = 11482664976. Its totient is φ = 9568887460.

The previous prime is 10525776211. The next prime is 10525776227. The reversal of 10525776217 is 71267752501.

10525776217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 de Polignac number, because none of the positive numbers 2^k-10525776217 is a prime.

It is a super-2 number, since 2×10525776217² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10525776211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478444363 + ... + 478444384.

It is an arithmetic number, because the mean of its divisors is an integer number (2870666244).

Almost surely, 2^10525776217 is an apocalyptic number.

It is an amenable number.

10525776217 is a deficient number, since it is larger than the sum of its proper divisors (956888759).

10525776217 is an equidigital number, since it uses as much as digits as its factorization.

10525776217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956888758.

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 10525776217 in words is "ten billion, five hundred twenty-five million, seven hundred seventy-six thousand, two hundred seventeen".