56611230 has 64 divisors (see below), whose sum is σ = 147087360. Its totient is φ = 13862016.

The previous prime is 56611223. The next prime is 56611231. The reversal of 56611230 is 3211665.

It is a super-2 number, since 2×56611230² = 6409662724225800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56611230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 147619 + ... + 148001.

It is an arithmetic number, because the mean of its divisors is an integer number (2298240).

Almost surely, 2^56611230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56611230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73543680).

56611230 is an abundant number, since it is smaller than the sum of its proper divisors (90476130).

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

56611230 is a wasteful number, since it uses less digits than its factorization.

56611230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 56611230 is about 7524.0434607995. The cubic root of 56611230 is about 383.9731562181.

Adding to 56611230 its reverse (3211665), we get a palindrome (59822895).

The spelling of 56611230 in words is "fifty-six million, six hundred eleven thousand, two hundred thirty".