56011530 has 16 divisors (see below), whose sum is σ = 134427744. Its totient is φ = 14936400.

The previous prime is 56011519. The next prime is 56011537. The reversal of 56011530 is 3511065.

It is a happy number.

56011530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56011497 and 56011506.

It is not an unprimeable number, because it can be changed into a prime (56011537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933496 + ... + 933555.

It is an arithmetic number, because the mean of its divisors is an integer number (8401734).

Almost surely, 2^56011530 is an apocalyptic number.

56011530 is an abundant number, since it is smaller than the sum of its proper divisors (78416214).

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

56011530 is a wasteful number, since it uses less digits than its factorization.

56011530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867061.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 56011530 is about 7484.0851144278. The cubic root of 56011530 is about 382.6124920104.

Adding to 56011530 its reverse (3511065), we get a palindrome (59522595).

It can be divided in two parts, 560 and 11530, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 56011530 in words is "fifty-six million, eleven thousand, five hundred thirty".