53638133 has 2 divisors, whose sum is σ = 53638134. Its totient is φ = 53638132.

The previous prime is 53638097. The next prime is 53638147. The reversal of 53638133 is 33183635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51739249 + 1898884 = 7193^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 53638133 - 2⁸ = 53637877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53638133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53638183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26819066 + 26819067.

It is an arithmetic number, because the mean of its divisors is an integer number (26819067).

Almost surely, 2^53638133 is an apocalyptic number.

It is an amenable number.

53638133 is a deficient number, since it is larger than the sum of its proper divisors (1).

53638133 is an equidigital number, since it uses as much as digits as its factorization.

53638133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 32.

The square root of 53638133 is about 7323.8059094981. The cubic root of 53638133 is about 377.1301185285.

The spelling of 53638133 in words is "fifty-three million, six hundred thirty-eight thousand, one hundred thirty-three".