52056181 has 12 divisors (see below), whose sum is σ = 55624800. Its totient is φ = 48581208.

The previous prime is 52056163. The next prime is 52056197. The reversal of 52056181 is 18165025.

It is not a de Polignac number, because 52056181 - 2⁵ = 52056149 is a prime.

It is a super-3 number, since 3×52056181³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52056481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118360 + ... + 118798.

It is an arithmetic number, because the mean of its divisors is an integer number (4635400).

Almost surely, 2^52056181 is an apocalyptic number.

It is an amenable number.

52056181 is a deficient number, since it is larger than the sum of its proper divisors (3568619).

52056181 is an equidigital number, since it uses as much as digits as its factorization.

52056181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 52056181 is about 7214.9969507963. The cubic root of 52056181 is about 373.3854879482.

The spelling of 52056181 in words is "fifty-two million, fifty-six thousand, one hundred eighty-one".