55928223 has 48 divisors (see below), whose sum is σ = 90810720. Its totient is φ = 32947200.

The previous prime is 55928221. The next prime is 55928233. The reversal of 55928223 is 32282955.

55928223 is a `hidden beast` number, since 559 + 2 + 82 + 23 = 666.

It is not a de Polignac number, because 55928223 - 2¹ = 55928221 is a prime.

It is a super-2 number, since 2×55928223² = 6255932255875458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55928221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 426868 + ... + 426998.

It is an arithmetic number, because the mean of its divisors is an integer number (1891890).

Almost surely, 2^55928223 is an apocalyptic number.

55928223 is a deficient number, since it is larger than the sum of its proper divisors (34882497).

55928223 is a wasteful number, since it uses less digits than its factorization.

55928223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 277 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 55928223 is about 7478.5174332885. The cubic root of 55928223 is about 382.4227089761.

It can be divided in two parts, 559 and 28223, that added together give a palindrome (28782).

The spelling of 55928223 in words is "fifty-five million, nine hundred twenty-eight thousand, two hundred twenty-three".