2654265221 has 2 divisors, whose sum is σ = 2654265222. Its totient is φ = 2654265220.

The previous prime is 2654265197. The next prime is 2654265227. The reversal of 2654265221 is 1225624562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2344012225 + 310252996 = 48415^2 + 17614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2654265221 - 2¹⁴ = 2654248837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2654265227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327132610 + 1327132611.

It is an arithmetic number, because the mean of its divisors is an integer number (1327132611).

Almost surely, 2^2654265221 is an apocalyptic number.

It is an amenable number.

2654265221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654265221 is an equidigital number, since it uses as much as digits as its factorization.

2654265221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 2654265221 is about 51519.5615373423. The cubic root of 2654265221 is about 1384.5695371442.

Adding to 2654265221 its reverse (1225624562), we get a palindrome (3879889783).

The spelling of 2654265221 in words is "two billion, six hundred fifty-four million, two hundred sixty-five thousand, two hundred twenty-one".