52013861 has 2 divisors, whose sum is σ = 52013862. Its totient is φ = 52013860.

The previous prime is 52013851. The next prime is 52013903. The reversal of 52013861 is 16831025.

52013861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46104100 + 5909761 = 6790^2 + 2431^2 .

It is a cyclic number.

It is not a de Polignac number, because 52013861 - 2²² = 47819557 is a prime.

It is a super-2 number, since 2×52013861² = 5410883472254642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52013861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52013851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26006930 + 26006931.

It is an arithmetic number, because the mean of its divisors is an integer number (26006931).

Almost surely, 2^52013861 is an apocalyptic number.

It is an amenable number.

52013861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52013861 is an equidigital number, since it uses as much as digits as its factorization.

52013861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 52013861 is about 7212.0635743177. The cubic root of 52013861 is about 373.2842770541.

Adding to 52013861 its reverse (16831025), we get a palindrome (68844886).

The spelling of 52013861 in words is "fifty-two million, thirteen thousand, eight hundred sixty-one".