5511979 has 4 divisors (see below), whose sum is σ = 6013080. Its totient is φ = 5010880.

The previous prime is 5511977. The next prime is 5511983. The reversal of 5511979 is 9791155.

It is a happy number.

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 5511979 - 2¹ = 5511977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5511971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250534 + ... + 250555.

It is an arithmetic number, because the mean of its divisors is an integer number (1503270).

Almost surely, 2^5511979 is an apocalyptic number.

5511979 is a deficient number, since it is larger than the sum of its proper divisors (501101).

5511979 is a wasteful number, since it uses less digits than its factorization.

5511979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501100.

The product of its digits is 14175, while the sum is 37.

The square root of 5511979 is about 2347.7604221896. The cubic root of 5511979 is about 176.6454754852.

The spelling of 5511979 in words is "five million, five hundred eleven thousand, nine hundred seventy-nine".