56780752820 has 96 divisors (see below), whose sum is σ = 131335416576. Its totient is φ = 20619096960.

The previous prime is 56780752813. The next prime is 56780752829. The reversal of 56780752820 is 2825708765.

It is a happy number.

56780752820 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 not an unprimeable number, because it can be changed into a prime (56780752829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34685042 + ... + 34686678.

It is an arithmetic number, because the mean of its divisors is an integer number (1368077256).

Almost surely, 2^56780752820 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 56780752820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65667708288).

56780752820 is an abundant number, since it is smaller than the sum of its proper divisors (74554663756).

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

56780752820 is a wasteful number, since it uses less digits than its factorization.

56780752820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982 (or 2958 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 56780752820 in words is "fifty-six billion, seven hundred eighty million, seven hundred fifty-two thousand, eight hundred twenty".