55079999 has 8 divisors (see below), whose sum is σ = 59376240. Its totient is φ = 50792256.

The previous prime is 55079987. The next prime is 55080041. The reversal of 55079999 is 99997055.

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 55079999 - 2⁸ = 55079743 is a prime.

It is a Duffinian number.

55079999 is a modest number, since divided by 9999 gives 5507 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 55079999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55070999) 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, 19739 + ... + 22355.

It is an arithmetic number, because the mean of its divisors is an integer number (7422030).

Almost surely, 2^55079999 is an apocalyptic number.

55079999 is a deficient number, since it is larger than the sum of its proper divisors (4296241).

55079999 is a wasteful number, since it uses less digits than its factorization.

55079999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249.

The product of its (nonzero) digits is 1148175, while the sum is 53.

The square root of 55079999 is about 7421.5900587408. The cubic root of 55079999 is about 380.4795400205.

The spelling of 55079999 in words is "fifty-five million, seventy-nine thousand, nine hundred ninety-nine".