55093939 has 8 divisors (see below), whose sum is σ = 59994000. Its totient is φ = 50393952.

The previous prime is 55093931. The next prime is 55093943. The reversal of 55093939 is 93939055.

55093939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55093939 - 2³ = 55093931 is a prime.

It is a super-2 number, since 2×55093939² = 6070684229071442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55093895 and 55093904.

It is not an unprimeable number, because it can be changed into a prime (55093931) 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, 49444 + ... + 50545.

It is an arithmetic number, because the mean of its divisors is an integer number (7499250).

Almost surely, 2^55093939 is an apocalyptic number.

55093939 is a deficient number, since it is larger than the sum of its proper divisors (4900061).

55093939 is a wasteful number, since it uses less digits than its factorization.

55093939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100037.

The product of its (nonzero) digits is 164025, while the sum is 43.

The square root of 55093939 is about 7422.5291511721. The cubic root of 55093939 is about 380.5116353818.

The spelling of 55093939 in words is "fifty-five million, ninety-three thousand, nine hundred thirty-nine".