52086021 has 16 divisors (see below), whose sum is σ = 74929344. Its totient is φ = 31993344.

The previous prime is 52086019. The next prime is 52086037. The reversal of 52086021 is 12068025.

It is not a de Polignac number, because 52086021 - 2¹ = 52086019 is a prime.

It is a super-2 number, since 2×52086021² = 5425907167224882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52085982 and 52086000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52086821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29845 + ... + 31541.

It is an arithmetic number, because the mean of its divisors is an integer number (4683084).

Almost surely, 2^52086021 is an apocalyptic number.

It is an amenable number.

52086021 is a deficient number, since it is larger than the sum of its proper divisors (22843323).

52086021 is a wasteful number, since it uses less digits than its factorization.

52086021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 52086021 is about 7217.0645694770. The cubic root of 52086021 is about 373.4568191811.

The spelling of 52086021 in words is "fifty-two million, eighty-six thousand, twenty-one".