55016393 has 8 divisors (see below), whose sum is σ = 58238400. Its totient is φ = 51882768.

The previous prime is 55016371. The next prime is 55016399. The reversal of 55016393 is 39361055.

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

It is not a de Polignac number, because 55016393 - 2¹⁰ = 55015369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55016399) 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, 20813 + ... + 23306.

It is an arithmetic number, because the mean of its divisors is an integer number (7279800).

Almost surely, 2^55016393 is an apocalyptic number.

It is an amenable number.

55016393 is a deficient number, since it is larger than the sum of its proper divisors (3222007).

55016393 is a wasteful number, since it uses less digits than its factorization.

55016393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44191.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 55016393 is about 7417.3036205888. The cubic root of 55016393 is about 380.3330252319. Note that the first 3 decimals are identical.

The spelling of 55016393 in words is "fifty-five million, sixteen thousand, three hundred ninety-three".