2188870553 has 2 divisors, whose sum is σ = 2188870554. Its totient is φ = 2188870552.

The previous prime is 2188870517. The next prime is 2188870571. The reversal of 2188870553 is 3550788812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2060433664 + 128436889 = 45392^2 + 11333^2 .

It is a cyclic number.

It is not a de Polignac number, because 2188870553 - 2⁸ = 2188870297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2188870498 and 2188870507.

It is not a weakly prime, because it can be changed into another prime (2188870253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094435276 + 1094435277.

It is an arithmetic number, because the mean of its divisors is an integer number (1094435277).

Almost surely, 2^2188870553 is an apocalyptic number.

It is an amenable number.

2188870553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2188870553 is an equidigital number, since it uses as much as digits as its factorization.

2188870553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 47.

The square root of 2188870553 is about 46785.3668682848. The cubic root of 2188870553 is about 1298.3945769909.

The spelling of 2188870553 in words is "two billion, one hundred eighty-eight million, eight hundred seventy thousand, five hundred fifty-three".