52636861 has 2 divisors, whose sum is σ = 52636862. Its totient is φ = 52636860.

The previous prime is 52636849. The next prime is 52636873. The reversal of 52636861 is 16863625.

It is a balanced prime because it is at equal distance from previous prime (52636849) and next prime (52636873).

It can be written as a sum of positive squares in only one way, i.e., 29539225 + 23097636 = 5435^2 + 4806^2 .

It is a cyclic number.

It is not a de Polignac number, because 52636861 - 2⁷ = 52636733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52636861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52636891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26318430 + 26318431.

It is an arithmetic number, because the mean of its divisors is an integer number (26318431).

Almost surely, 2^52636861 is an apocalyptic number.

It is an amenable number.

52636861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52636861 is an equidigital number, since it uses as much as digits as its factorization.

52636861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 52636861 is about 7255.1265323218. The cubic root of 52636861 is about 374.7687130833.

The spelling of 52636861 in words is "fifty-two million, six hundred thirty-six thousand, eight hundred sixty-one".