53636647 has 2 divisors, whose sum is σ = 53636648. Its totient is φ = 53636646.

The previous prime is 53636641. The next prime is 53636701. The reversal of 53636647 is 74663635.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53636647 - 2⁷ = 53636519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53636641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26818323 + 26818324.

It is an arithmetic number, because the mean of its divisors is an integer number (26818324).

Almost surely, 2^53636647 is an apocalyptic number.

53636647 is a deficient number, since it is larger than the sum of its proper divisors (1).

53636647 is an equidigital number, since it uses as much as digits as its factorization.

53636647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 40.

The square root of 53636647 is about 7323.7044588104. The cubic root of 53636647 is about 377.1266358040.

The spelling of 53636647 in words is "fifty-three million, six hundred thirty-six thousand, six hundred forty-seven".