55901648 has 80 divisors (see below), whose sum is σ = 126628800. Its totient is φ = 23639040.

The previous prime is 55901641. The next prime is 55901683. The reversal of 55901648 is 84610955.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55901641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243998 + ... + 244226.

It is an arithmetic number, because the mean of its divisors is an integer number (1582860).

Almost surely, 2^55901648 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 55901648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63314400).

55901648 is an abundant number, since it is smaller than the sum of its proper divisors (70727152).

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

55901648 is a wasteful number, since it uses less digits than its factorization.

55901648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 55901648 is about 7476.7404662727. The cubic root of 55901648 is about 382.3621283900.

The spelling of 55901648 in words is "fifty-five million, nine hundred one thousand, six hundred forty-eight".