52986139 has 2 divisors, whose sum is σ = 52986140. Its totient is φ = 52986138.

The previous prime is 52986137. The next prime is 52986151. The reversal of 52986139 is 93168925.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52986139 - 2¹ = 52986137 is a prime.

It is a super-2 number, since 2×52986139² = 5615061852254642, which contains 22 as substring.

Together with 52986137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 52986095 and 52986104.

It is not a weakly prime, because it can be changed into another prime (52986133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26493069 + 26493070.

It is an arithmetic number, because the mean of its divisors is an integer number (26493070).

Almost surely, 2^52986139 is an apocalyptic number.

52986139 is a deficient number, since it is larger than the sum of its proper divisors (1).

52986139 is an equidigital number, since it uses as much as digits as its factorization.

52986139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 52986139 is about 7279.1578496417. The cubic root of 52986139 is about 375.5958267325.

It can be divided in two parts, 529 and 86139, that added together give a palindrome (86668).

The spelling of 52986139 in words is "fifty-two million, nine hundred eighty-six thousand, one hundred thirty-nine".