2655582521 has 4 divisors (see below), whose sum is σ = 2655686544. Its totient is φ = 2655478500.

The previous prime is 2655582509. The next prime is 2655582533. The reversal of 2655582521 is 1252855562.

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, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2655582509) and next prime (2655582533).

It is a cyclic number.

It is not a de Polignac number, because 2655582521 - 2¹⁸ = 2655320377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2655582571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15446 + ... + 74496.

It is an arithmetic number, because the mean of its divisors is an integer number (663921636).

Almost surely, 2^2655582521 is an apocalyptic number.

It is an amenable number.

2655582521 is a deficient number, since it is larger than the sum of its proper divisors (104023).

2655582521 is an equidigital number, since it uses as much as digits as its factorization.

2655582521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104022.

The product of its digits is 240000, while the sum is 41.

The square root of 2655582521 is about 51532.3444159103. The cubic root of 2655582521 is about 1384.7985511591.

The spelling of 2655582521 in words is "two billion, six hundred fifty-five million, five hundred eighty-two thousand, five hundred twenty-one".