56657748 has 96 divisors (see below), whose sum is σ = 156893184. Its totient is φ = 15579648.

The previous prime is 56657743. The next prime is 56657761. The reversal of 56657748 is 84775665.

It is a junction number, because it is equal to n+sod(n) for n = 56657697 and 56657706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56657743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446061 + ... + 446187.

It is an arithmetic number, because the mean of its divisors is an integer number (1634304).

Almost surely, 2^56657748 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 56657748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78446592).

56657748 is an abundant number, since it is smaller than the sum of its proper divisors (100235436).

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

56657748 is a wasteful number, since it uses less digits than its factorization.

56657748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 299 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 48.

The square root of 56657748 is about 7527.1341159833. The cubic root of 56657748 is about 384.0782989206.

The spelling of 56657748 in words is "fifty-six million, six hundred fifty-seven thousand, seven hundred forty-eight".