55017823 has 8 divisors (see below), whose sum is σ = 62923392. Its totient is φ = 47123736.

The previous prime is 55017821. The next prime is 55017847. The reversal of 55017823 is 32871055.

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 55017823 - 2¹ = 55017821 is a prime.

It is a super-3 number, since 3×55017823³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55017821) 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, 14136 + ... + 17602.

It is an arithmetic number, because the mean of its divisors is an integer number (7865424).

Almost surely, 2^55017823 is an apocalyptic number.

55017823 is a deficient number, since it is larger than the sum of its proper divisors (7905569).

55017823 is a wasteful number, since it uses less digits than its factorization.

55017823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 55017823 is about 7417.4000161782. The cubic root of 55017823 is about 380.3363204407.

Adding to 55017823 its reverse (32871055), we get a palindrome (87888878).

The spelling of 55017823 in words is "fifty-five million, seventeen thousand, eight hundred twenty-three".