2655480621 has 4 divisors (see below), whose sum is σ = 3540640832. Its totient is φ = 1770320412.

The previous prime is 2655480601. The next prime is 2655480643. The reversal of 2655480621 is 1260845562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2655480621 - 2¹⁴ = 2655464237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2655480621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655480601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442580101 + ... + 442580106.

It is an arithmetic number, because the mean of its divisors is an integer number (885160208).

Almost surely, 2^2655480621 is an apocalyptic number.

It is an amenable number.

2655480621 is a deficient number, since it is larger than the sum of its proper divisors (885160211).

2655480621 is an equidigital number, since it uses as much as digits as its factorization.

2655480621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885160210.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 2655480621 is about 51531.3557069868. The cubic root of 2655480621 is about 1384.7808384380.

The spelling of 2655480621 in words is "two billion, six hundred fifty-five million, four hundred eighty thousand, six hundred twenty-one".