55115799 has 8 divisors (see below), whose sum is σ = 75858432. Its totient is φ = 35558520.

The previous prime is 55115791. The next prime is 55115821. The reversal of 55115799 is 99751155.

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

It is not a de Polignac number, because 55115799 - 2³ = 55115791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55115799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55115791) 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, 296229 + ... + 296414.

It is an arithmetic number, because the mean of its divisors is an integer number (9482304).

Almost surely, 2^55115799 is an apocalyptic number.

55115799 is a deficient number, since it is larger than the sum of its proper divisors (20742633).

55115799 is a wasteful number, since it uses less digits than its factorization.

55115799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592677.

The product of its digits is 70875, while the sum is 42.

The square root of 55115799 is about 7424.0015490300. The cubic root of 55115799 is about 380.5619547975.

The spelling of 55115799 in words is "fifty-five million, one hundred fifteen thousand, seven hundred ninety-nine".