5515779 has 8 divisors (see below), whose sum is σ = 7511040. Its totient is φ = 3598856.

The previous prime is 5515729. The next prime is 5515787. The reversal of 5515779 is 9775155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5515779 - 2⁷ = 5515651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5515709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19419 + ... + 19700.

It is an arithmetic number, because the mean of its divisors is an integer number (938880).

Almost surely, 2^5515779 is an apocalyptic number.

5515779 is a deficient number, since it is larger than the sum of its proper divisors (1995261).

5515779 is a wasteful number, since it uses less digits than its factorization.

5515779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39169.

The product of its digits is 55125, while the sum is 39.

The square root of 5515779 is about 2348.5695646499. The cubic root of 5515779 is about 176.6860597357.

The spelling of 5515779 in words is "five million, five hundred fifteen thousand, seven hundred seventy-nine".