525090086161 has 3 divisors (see below), whose sum is σ = 525090810793. Its totient is φ = 525089361530.

The previous prime is 525090086107. The next prime is 525090086189. The reversal of 525090086161 is 161680090525.

The square root of 525090086161 is 724631.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 525090086161 - 2²⁷ = 524955868433 is a prime.

It is a super-3 number, since 3×525090086161³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525090087161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 362316 + ... + 1086946.

Almost surely, 2^525090086161 is an apocalyptic number.

525090086161 is the 724631-st square number.

525090086161 is the 362316-th centered octagonal number.

It is an amenable number.

525090086161 is a deficient number, since it is larger than the sum of its proper divisors (724632).

525090086161 is an frugal number, since it uses more digits than its factorization.

525090086161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449262 (or 724631 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 525090086161 in words is "five hundred twenty-five billion, ninety million, eighty-six thousand, one hundred sixty-one".