55784023 has 8 divisors (see below), whose sum is σ = 58046400. Its totient is φ = 53544288.

The previous prime is 55784009. The next prime is 55784041. The reversal of 55784023 is 32048755.

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 55784023 - 2¹³ = 55775831 is a prime.

It is a super-2 number, since 2×55784023² = 6223714444129058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55784023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55784063) 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, 543 + ... + 10576.

It is an arithmetic number, because the mean of its divisors is an integer number (7255800).

Almost surely, 2^55784023 is an apocalyptic number.

55784023 is a deficient number, since it is larger than the sum of its proper divisors (2262377).

55784023 is a wasteful number, since it uses less digits than its factorization.

55784023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 55784023 is about 7468.8702626301. The cubic root of 55784023 is about 382.0937586804.

The spelling of 55784023 in words is "fifty-five million, seven hundred eighty-four thousand, twenty-three".