55719648 has 108 divisors (see below), whose sum is σ = 165660768. Its totient is φ = 17746560.

The previous prime is 55719641. The next prime is 55719649. The reversal of 55719648 is 84691755.

55719648 is a `hidden beast` number, since 557 + 1 + 96 + 4 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55719641) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 705273 + ... + 705351.

It is an arithmetic number, because the mean of its divisors is an integer number (1533896).

Almost surely, 2^55719648 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 55719648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82830384).

55719648 is an abundant number, since it is smaller than the sum of its proper divisors (109941120).

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

55719648 is a wasteful number, since it uses less digits than its factorization.

55719648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 115 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 55719648 is about 7464.5594645632. The cubic root of 55719648 is about 381.9467228312.

The spelling of 55719648 in words is "fifty-five million, seven hundred nineteen thousand, six hundred forty-eight".