56548440 has 192 divisors, whose sum is σ = 203243040. Its totient is φ = 13547520.

The previous prime is 56548423. The next prime is 56548441. The reversal of 56548440 is 4484565.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 56548395 and 56548404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56548441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 201100 + ... + 201380.

Almost surely, 2^56548440 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 56548440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101621520).

56548440 is an abundant number, since it is smaller than the sum of its proper divisors (146694600).

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

56548440 is a wasteful number, since it uses less digits than its factorization.

56548440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 56548440 is about 7519.8696797219. The cubic root of 56548440 is about 383.8311432072.

The spelling of 56548440 in words is "fifty-six million, five hundred forty-eight thousand, four hundred forty".