55986448 has 20 divisors (see below), whose sum is σ = 123970240. Its totient is φ = 23994144.

The previous prime is 55986419. The next prime is 55986449. The reversal of 55986448 is 84468955.

It is not an unprimeable number, because it can be changed into a prime (55986449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249828 + ... + 250051.

It is an arithmetic number, because the mean of its divisors is an integer number (6198512).

Almost surely, 2^55986448 is an apocalyptic number.

It is an amenable number.

55986448 is an abundant number, since it is smaller than the sum of its proper divisors (67983792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55986448 is a wasteful number, since it uses less digits than its factorization.

55986448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499894 (or 499888 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 49.

The square root of 55986448 is about 7482.4092376720. The cubic root of 55986448 is about 382.5553721082. Note that the first 3 decimals are identical.

The spelling of 55986448 in words is "fifty-five million, nine hundred eighty-six thousand, four hundred forty-eight".