525643655117 has 12 divisors (see below), whose sum is σ = 611789944896. Its totient is φ = 450310817880.

The previous prime is 525643655093. The next prime is 525643655129. The reversal of 525643655117 is 711556346525.

It is not a de Polignac number, because 525643655117 - 2²² = 525639460813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525643655417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2775083 + ... + 2958440.

It is an arithmetic number, because the mean of its divisors is an integer number (50982495408).

Almost surely, 2^525643655117 is an apocalyptic number.

It is an amenable number.

525643655117 is a deficient number, since it is larger than the sum of its proper divisors (86146289779).

525643655117 is a wasteful number, since it uses less digits than its factorization.

525643655117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5735408 (or 5735401 counting only the distinct ones).

The product of its digits is 3780000, while the sum is 50.

The spelling of 525643655117 in words is "five hundred twenty-five billion, six hundred forty-three million, six hundred fifty-five thousand, one hundred seventeen".