55120435 has 4 divisors (see below), whose sum is σ = 66144528. Its totient is φ = 44096344.

The previous prime is 55120423. The next prime is 55120451. The reversal of 55120435 is 53402155.

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 55120435 - 2¹⁹ = 54596147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 5512039 + ... + 5512048.

It is an arithmetic number, because the mean of its divisors is an integer number (16536132).

Almost surely, 2^55120435 is an apocalyptic number.

55120435 is a deficient number, since it is larger than the sum of its proper divisors (11024093).

55120435 is a wasteful number, since it uses less digits than its factorization.

55120435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024092.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55120435 is about 7424.3137730029. The cubic root of 55120435 is about 380.5726246707.

It can be divided in two parts, 55120 and 435, that added together give a palindrome (55555).

The spelling of 55120435 in words is "fifty-five million, one hundred twenty thousand, four hundred thirty-five".