10217665525 has 12 divisors (see below), whose sum is σ = 12675916864. Its totient is φ = 8170254000.

The previous prime is 10217665487. The next prime is 10217665531. The reversal of 10217665525 is 52556671201.

It is not a de Polignac number, because 10217665525 - 2⁹ = 10217665013 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42621 + ... + 149170.

Almost surely, 2^10217665525 is an apocalyptic number.

It is an amenable number.

10217665525 is a deficient number, since it is larger than the sum of its proper divisors (2458251339).

10217665525 is a wasteful number, since it uses less digits than its factorization.

10217665525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193932 (or 193927 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 10217665525 in words is "ten billion, two hundred seventeen million, six hundred sixty-five thousand, five hundred twenty-five".