55261648 has 60 divisors (see below), whose sum is σ = 117635328. Its totient is φ = 25134720.

The previous prime is 55261631. The next prime is 55261651. The reversal of 55261648 is 84616255.

55261648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289233 + ... + 289423.

Almost surely, 2^55261648 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 55261648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58817664).

55261648 is an abundant number, since it is smaller than the sum of its proper divisors (62373680).

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

55261648 is a wasteful number, since it uses less digits than its factorization.

55261648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 313 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 55261648 is about 7433.8178616375. The cubic root of 55261648 is about 380.8973437673.

The spelling of 55261648 in words is "fifty-five million, two hundred sixty-one thousand, six hundred forty-eight".