55928385 has 48 divisors (see below), whose sum is σ = 106226640. Its totient is φ = 27095040.

The previous prime is 55928377. The next prime is 55928407. The reversal of 55928385 is 58382955.

It can be written as a sum of positive squares in 8 ways, for example, as 4562496 + 51365889 = 2136^2 + 7167^2 .

It is not a de Polignac number, because 55928385 - 2³ = 55928377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55928385.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20925 + ... + 23445.

It is an arithmetic number, because the mean of its divisors is an integer number (2213055).

Almost surely, 2^55928385 is an apocalyptic number.

It is an amenable number.

55928385 is a deficient number, since it is larger than the sum of its proper divisors (50298255).

55928385 is a wasteful number, since it uses less digits than its factorization.

55928385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2575 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 55928385 is about 7478.5282643044. The cubic root of 55928385 is about 382.4230782138.

The spelling of 55928385 in words is "fifty-five million, nine hundred twenty-eight thousand, three hundred eighty-five".