52612381 has 2 divisors, whose sum is σ = 52612382. Its totient is φ = 52612380.

The previous prime is 52612367. The next prime is 52612397. The reversal of 52612381 is 18321625.

52612381 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., 37332100 + 15280281 = 6110^2 + 3909^2 .

It is a cyclic number.

It is not a de Polignac number, because 52612381 - 2⁷ = 52612253 is a prime.

It is a super-2 number, since 2×52612381² = 5536125268978322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_3148237 and since 52612381 and 3148237 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52612321) 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, 26306190 + 26306191.

It is an arithmetic number, because the mean of its divisors is an integer number (26306191).

Almost surely, 2^52612381 is an apocalyptic number.

It is an amenable number.

52612381 is a deficient number, since it is larger than the sum of its proper divisors (1).

52612381 is an equidigital number, since it uses as much as digits as its factorization.

52612381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 52612381 is about 7253.4392532095. The cubic root of 52612381 is about 374.7106057638.

The spelling of 52612381 in words is "fifty-two million, six hundred twelve thousand, three hundred eighty-one".