55928799 has 20 divisors (see below), whose sum is σ = 87947640. Its totient is φ = 35322480.

The previous prime is 55928779. The next prime is 55928809. The reversal of 55928799 is 99782955.

55928799 is a `hidden beast` number, since 559 + 2 + 87 + 9 + 9 = 666.

It is not a de Polignac number, because 55928799 - 2¹³ = 55920607 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55928749) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16632 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (4397382).

Almost surely, 2^55928799 is an apocalyptic number.

55928799 is a deficient number, since it is larger than the sum of its proper divisors (32018841).

55928799 is a wasteful number, since it uses less digits than its factorization.

55928799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36372 (or 36363 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 54.

The square root of 55928799 is about 7478.5559434960. Note that the first 3 decimals coincide. The cubic root of 55928799 is about 382.4240218179.

The spelling of 55928799 in words is "fifty-five million, nine hundred twenty-eight thousand, seven hundred ninety-nine".