2655225421 has 2 divisors, whose sum is σ = 2655225422. Its totient is φ = 2655225420.

The previous prime is 2655225383. The next prime is 2655225431. The reversal of 2655225421 is 1245225562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2498600196 + 156625225 = 49986^2 + 12515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2655225421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2655225431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327612710 + 1327612711.

It is an arithmetic number, because the mean of its divisors is an integer number (1327612711).

Almost surely, 2^2655225421 is an apocalyptic number.

It is an amenable number.

2655225421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655225421 is an equidigital number, since it uses as much as digits as its factorization.

2655225421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48000, while the sum is 34.

The square root of 2655225421 is about 51528.8794851974. The cubic root of 2655225421 is about 1384.7364764258.

The spelling of 2655225421 in words is "two billion, six hundred fifty-five million, two hundred twenty-five thousand, four hundred twenty-one".