53638873 has 2 divisors, whose sum is σ = 53638874. Its totient is φ = 53638872.

The previous prime is 53638861. The next prime is 53638877. The reversal of 53638873 is 37883635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53626329 + 12544 = 7323^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 53638873 - 2⁵ = 53638841 is a prime.

It is not a weakly prime, because it can be changed into another prime (53638877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26819436 + 26819437.

It is an arithmetic number, because the mean of its divisors is an integer number (26819437).

Almost surely, 2^53638873 is an apocalyptic number.

It is an amenable number.

53638873 is a deficient number, since it is larger than the sum of its proper divisors (1).

53638873 is an equidigital number, since it uses as much as digits as its factorization.

53638873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 43.

The square root of 53638873 is about 7323.8564295049. The cubic root of 53638873 is about 377.1318528358.

The spelling of 53638873 in words is "fifty-three million, six hundred thirty-eight thousand, eight hundred seventy-three".