52086321 has 56 divisors (see below), whose sum is σ = 91287360. Its totient is φ = 29090016.

The previous prime is 52086319. The next prime is 52086323. The reversal of 52086321 is 12368025.

52086321 is a `hidden beast` number, since 5 + 20 + 8 + 632 + 1 = 666.

52086321 is a nontrivial binomial coefficient, being equal to C(10207, 2).

It is an interprime number because it is at equal distance from previous prime (52086319) and next prime (52086323).

It is not a de Polignac number, because 52086321 - 2¹ = 52086319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52086323) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 300991 + ... + 301163.

Almost surely, 2^52086321 is an apocalyptic number.

52086321 is the 10206-th triangular number.

It is an amenable number.

52086321 is a deficient number, since it is larger than the sum of its proper divisors (39201039).

52086321 is an equidigital number, since it uses as much as digits as its factorization.

52086321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 52086321 is about 7217.0853535205. The cubic root of 52086321 is about 373.4575361798.

The spelling of 52086321 in words is "fifty-two million, eighty-six thousand, three hundred twenty-one".