56040203520 has 432 divisors, whose sum is σ = 234632885760. Its totient is φ = 12055412736.

The previous prime is 56040203507. The next prime is 56040203539. The reversal of 56040203520 is 2530204065.

56040203520 is a `hidden beast` number, since 5 + 604 + 0 + 2 + 0 + 3 + 52 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1350441 + ... + 1391319.

It is an arithmetic number, because the mean of its divisors is an integer number (543131680).

Almost surely, 2^56040203520 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 56040203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117316442880).

56040203520 is an abundant number, since it is smaller than the sum of its proper divisors (178592682240).

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

56040203520 is a wasteful number, since it uses less digits than its factorization.

56040203520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40930 (or 40913 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 56040203520 its reverse (2530204065), we get a palindrome (58570407585).

It can be divided in two parts, 56040 and 203520, that added together give a triangular number (259560 = T₇₂₀).

The spelling of 56040203520 in words is "fifty-six billion, forty million, two hundred three thousand, five hundred twenty".