2660550251 has 4 divisors (see below), whose sum is σ = 2668943472. Its totient is φ = 2652157032.

The previous prime is 2660550209. The next prime is 2660550257. The reversal of 2660550251 is 1520550662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2660550251 - 2⁶ = 2660550187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2660550257) 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, 4196135 + ... + 4196768.

It is an arithmetic number, because the mean of its divisors is an integer number (667235868).

Almost surely, 2^2660550251 is an apocalyptic number.

2660550251 is a deficient number, since it is larger than the sum of its proper divisors (8393221).

2660550251 is an equidigital number, since it uses as much as digits as its factorization.

2660550251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8393220.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 2660550251 is about 51580.5220117052. The cubic root of 2660550251 is about 1385.6615156321.

The spelling of 2660550251 in words is "two billion, six hundred sixty million, five hundred fifty thousand, two hundred fifty-one".