55156799 has 4 divisors (see below), whose sum is σ = 56091720. Its totient is φ = 54221880.

The previous prime is 55156793. The next prime is 55156813. The reversal of 55156799 is 99765155.

55156799 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55156799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55156793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467372 + ... + 467489.

It is an arithmetic number, because the mean of its divisors is an integer number (14022930).

Almost surely, 2^55156799 is an apocalyptic number.

55156799 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

55156799 is a deficient number, since it is larger than the sum of its proper divisors (934921).

55156799 is an equidigital number, since it uses as much as digits as its factorization.

55156799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934920.

The product of its digits is 425250, while the sum is 47.

The square root of 55156799 is about 7426.7623497726. The cubic root of 55156799 is about 380.6562966079.

It can be divided in two parts, 55156 and 799, that added together give a palindrome (55955).

The spelling of 55156799 in words is "fifty-five million, one hundred fifty-six thousand, seven hundred ninety-nine".