2221555153 has 2 divisors, whose sum is σ = 2221555154. Its totient is φ = 2221555152.

The previous prime is 2221555123. The next prime is 2221555159. The reversal of 2221555153 is 3515551222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1241364289 + 980190864 = 35233^2 + 31308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221555153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221555159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110777576 + 1110777577.

It is an arithmetic number, because the mean of its divisors is an integer number (1110777577).

Almost surely, 2^2221555153 is an apocalyptic number.

It is an amenable number.

2221555153 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221555153 is an equidigital number, since it uses as much as digits as its factorization.

2221555153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15000, while the sum is 31.

The square root of 2221555153 is about 47133.3762104944. The cubic root of 2221555153 is about 1304.8252929365.

The spelling of 2221555153 in words is "two billion, two hundred twenty-one million, five hundred fifty-five thousand, one hundred fifty-three".