1979553275 has 24 divisors (see below), whose sum is σ = 2807510784. Its totient is φ = 1356343200.

The previous prime is 1979553271. The next prime is 1979553299. The reversal of 1979553275 is 5723559791.

It is not a de Polignac number, because 1979553275 - 2² = 1979553271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1979553271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266360 + ... + 273690.

It is an arithmetic number, because the mean of its divisors is an integer number (116979616).

Almost surely, 2^1979553275 is an apocalyptic number.

1979553275 is a deficient number, since it is larger than the sum of its proper divisors (827957509).

1979553275 is a wasteful number, since it uses less digits than its factorization.

1979553275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891 (or 8886 counting only the distinct ones).

The product of its digits is 2976750, while the sum is 53.

The square root of 1979553275 is about 44492.1709405149. The cubic root of 1979553275 is about 1255.6127915349.

The spelling of 1979553275 in words is "one billion, nine hundred seventy-nine million, five hundred fifty-three thousand, two hundred seventy-five".