5645982553 has 2 divisors, whose sum is σ = 5645982554. Its totient is φ = 5645982552.

The previous prime is 5645982547. The next prime is 5645982607. The reversal of 5645982553 is 3552895465.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2875855129 + 2770127424 = 53627^2 + 52632^2 .

It is a cyclic number.

It is not a de Polignac number, because 5645982553 - 2¹³ = 5645974361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5645982553.

It is not a weakly prime, because it can be changed into another prime (5645982253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2822991276 + 2822991277.

It is an arithmetic number, because the mean of its divisors is an integer number (2822991277).

Almost surely, 2^5645982553 is an apocalyptic number.

It is an amenable number.

5645982553 is a deficient number, since it is larger than the sum of its proper divisors (1).

5645982553 is an equidigital number, since it uses as much as digits as its factorization.

5645982553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480000, while the sum is 52.

The square root of 5645982553 is about 75139.7534797660. The cubic root of 5645982553 is about 1780.6552476531.

The spelling of 5645982553 in words is "five billion, six hundred forty-five million, nine hundred eighty-two thousand, five hundred fifty-three".