55299823 has 8 divisors (see below), whose sum is σ = 58788720. Its totient is φ = 51868800.

The previous prime is 55299821. The next prime is 55299887. The reversal of 55299823 is 32899255.

It is a happy number.

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 55299823 - 2¹ = 55299821 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 55299823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55299821) 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, 12490 + ... + 16327.

It is an arithmetic number, because the mean of its divisors is an integer number (7348590).

Almost surely, 2^55299823 is an apocalyptic number.

55299823 is a deficient number, since it is larger than the sum of its proper divisors (3488897).

55299823 is a wasteful number, since it uses less digits than its factorization.

55299823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28937.

The product of its digits is 194400, while the sum is 43.

The square root of 55299823 is about 7436.3850760971. The cubic root of 55299823 is about 380.9850321228.

The spelling of 55299823 in words is "fifty-five million, two hundred ninety-nine thousand, eight hundred twenty-three".