525761672421161 has 16 divisors (see below), whose sum is σ = 593337648916800. Its totient is φ = 461482361188800.

The previous prime is 525761672421133. The next prime is 525761672421169. The reversal of 525761672421161 is 161124276167525.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525761672421161 is a prime.

It is a super-3 number, since 3×525761672421161³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525761672421097 and 525761672421106.

It is not an unprimeable number, because it can be changed into a prime (525761672421169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129035606 + ... + 133047776.

It is an arithmetic number, because the mean of its divisors is an integer number (37083603057300).

Almost surely, 2^{525761672421161} is an apocalyptic number.

It is an amenable number.

525761672421161 is a deficient number, since it is larger than the sum of its proper divisors (67575976495639).

525761672421161 is a wasteful number, since it uses less digits than its factorization.

525761672421161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423000.

The product of its digits is 8467200, while the sum is 56.

The spelling of 525761672421161 in words is "five hundred twenty-five trillion, seven hundred sixty-one billion, six hundred seventy-two million, four hundred twenty-one thousand, one hundred sixty-one".