525730556827081 has 8 divisors (see below), whose sum is σ = 543930002728200. Its totient is φ = 507535831326720.

The previous prime is 525730556827079. The next prime is 525730556827087. The reversal of 525730556827081 is 180728655037525.

It can be written as a sum of positive squares in 4 ways, for example, as 38697917185225 + 487032639641856 = 6220765^2 + 22068816^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525730556827081 - 2¹ = 525730556827079 is a prime.

It is a super-2 number, since 2×525730556827081² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525730556827087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179873586 + ... + 1180319083.

It is an arithmetic number, because the mean of its divisors is an integer number (67991250341025).

Almost surely, 2^{525730556827081} is an apocalyptic number.

It is an amenable number.

525730556827081 is a deficient number, since it is larger than the sum of its proper divisors (18199445901119).

525730556827081 is a wasteful number, since it uses less digits than its factorization.

525730556827081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360200379.

The product of its (nonzero) digits is 141120000, while the sum is 64.

The spelling of 525730556827081 in words is "five hundred twenty-five trillion, seven hundred thirty billion, five hundred fifty-six million, eight hundred twenty-seven thousand, eighty-one".