55409794 has 16 divisors (see below), whose sum is σ = 93122496. Its totient is φ = 24505200.

The previous prime is 55409773. The next prime is 55409797. The reversal of 55409794 is 49790455.

It is a happy number.

55409794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55409794² = 6140490542244872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55409794.

It is not an unprimeable number, because it can be changed into a prime (55409797) 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 7 ways as a sum of consecutive naturals, for example, 33222 + ... + 34849.

It is an arithmetic number, because the mean of its divisors is an integer number (5820156).

Almost surely, 2^55409794 is an apocalyptic number.

55409794 is a deficient number, since it is larger than the sum of its proper divisors (37712702).

55409794 is a wasteful number, since it uses less digits than its factorization.

55409794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68121.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 55409794 is about 7443.7755205272. The cubic root of 55409794 is about 381.2374112479.

The spelling of 55409794 in words is "fifty-five million, four hundred nine thousand, seven hundred ninety-four".