2003551279 has 2 divisors, whose sum is σ = 2003551280. Its totient is φ = 2003551278.

The previous prime is 2003551243. The next prime is 2003551301. The reversal of 2003551279 is 9721553002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2003551279 - 2¹⁵ = 2003518511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003551219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001775639 + 1001775640.

It is an arithmetic number, because the mean of its divisors is an integer number (1001775640).

Almost surely, 2^2003551279 is an apocalyptic number.

2003551279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003551279 is an equidigital number, since it uses as much as digits as its factorization.

2003551279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 2003551279 is about 44761.0464466594. The cubic root of 2003551279 is about 1260.6663308131. Note that the first 3 decimals are identical.

The spelling of 2003551279 in words is "two billion, three million, five hundred fifty-one thousand, two hundred seventy-nine".