55293863 has 8 divisors (see below), whose sum is σ = 59559936. Its totient is φ = 51183000.

The previous prime is 55293851. The next prime is 55293869. The reversal of 55293863 is 36839255.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55293863 is a prime.

It is a super-2 number, since 2×55293863² = 6114822570925538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55293863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55293869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38063 + ... + 39488.

It is an arithmetic number, because the mean of its divisors is an integer number (7444992).

Almost surely, 2^55293863 is an apocalyptic number.

55293863 is a deficient number, since it is larger than the sum of its proper divisors (4266073).

55293863 is a wasteful number, since it uses less digits than its factorization.

55293863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77605.

The product of its digits is 194400, while the sum is 41.

The square root of 55293863 is about 7435.9843329582. The cubic root of 55293863 is about 380.9713446024.

The spelling of 55293863 in words is "fifty-five million, two hundred ninety-three thousand, eight hundred sixty-three".