5638401653 has 2 divisors, whose sum is σ = 5638401654. Its totient is φ = 5638401652.

The previous prime is 5638401581. The next prime is 5638401673. The reversal of 5638401653 is 3561048365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5572174609 + 66227044 = 74647^2 + 8138^2 .

It is a cyclic number.

It is not a de Polignac number, because 5638401653 - 2¹⁰ = 5638400629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5638401653.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5638401673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2819200826 + 2819200827.

It is an arithmetic number, because the mean of its divisors is an integer number (2819200827).

Almost surely, 2^5638401653 is an apocalyptic number.

It is an amenable number.

5638401653 is a deficient number, since it is larger than the sum of its proper divisors (1).

5638401653 is an equidigital number, since it uses as much as digits as its factorization.

5638401653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 5638401653 is about 75089.2912005434. The cubic root of 5638401653 is about 1779.8579246321.

The spelling of 5638401653 in words is "five billion, six hundred thirty-eight million, four hundred one thousand, six hundred fifty-three".