55256448 has 64 divisors (see below), whose sum is σ = 158079600. Its totient is φ = 17000448.

The previous prime is 55256437. The next prime is 55256449. The reversal of 55256448 is 84465255.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55256449) 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 + ... + 10526.

Almost surely, 2^55256448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55256448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79039800).

55256448 is an abundant number, since it is smaller than the sum of its proper divisors (102823152).

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

55256448 is a wasteful number, since it uses less digits than its factorization.

55256448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11099 (or 11087 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

The square root of 55256448 is about 7433.4681004226. The cubic root of 55256448 is about 380.8853961907.

The spelling of 55256448 in words is "fifty-five million, two hundred fifty-six thousand, four hundred forty-eight".