52665117825429 has 6 divisors (see below), whose sum is σ = 76071836858966. Its totient is φ = 35110078550280.

The previous prime is 52665117825379. The next prime is 52665117825449. The reversal of 52665117825429 is 92452871156625.

52665117825429 is a `hidden beast` number, since 5 + 2 + 6 + 6 + 5 + 1 + 1 + 7 + 82 + 542 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 50123596359204 + 2541521466225 = 7079802^2 + 1594215^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52665117825429 is a prime.

It is a super-2 number, since 2×52665117825429² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52665117825449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2925839879182 + ... + 2925839879199.

Almost surely, 2^{52665117825429} is an apocalyptic number.

It is an amenable number.

52665117825429 is a deficient number, since it is larger than the sum of its proper divisors (23406719033537).

52665117825429 is a wasteful number, since it uses less digits than its factorization.

52665117825429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851679758387 (or 5851679758384 counting only the distinct ones).

The product of its digits is 72576000, while the sum is 63.

The spelling of 52665117825429 in words is "fifty-two trillion, six hundred sixty-five billion, one hundred seventeen million, eight hundred twenty-five thousand, four hundred twenty-nine".