56107520 has 160 divisors (see below), whose sum is σ = 160275456. Its totient is φ = 18432000.

The previous prime is 56107507. The next prime is 56107529. The reversal of 56107520 is 2570165.

It is a tau number, because it is divible by the number of its divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 56107520.

It is not an unprimeable number, because it can be changed into a prime (56107529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555470 + ... + 555570.

Almost surely, 2^56107520 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 56107520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80137728).

56107520 is an abundant number, since it is smaller than the sum of its proper divisors (104167936).

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

56107520 is a wasteful number, since it uses less digits than its factorization.

56107520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 56107520 is about 7490.4953107255. The cubic root of 56107520 is about 382.8309352055.

Adding to 56107520 its reverse (2570165), we get a palindrome (58677685).

The spelling of 56107520 in words is "fifty-six million, one hundred seven thousand, five hundred twenty".