56012420 has 12 divisors (see below), whose sum is σ = 117626124. Its totient is φ = 22404960.

The previous prime is 56012371. The next prime is 56012423. The reversal of 56012420 is 2421065.

It is a happy number.

56012420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11710084 + 44302336 = 3422^2 + 6656^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2800621 = 56012420 / (5 + 6 + 0 + 1 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 56012392 and 56012401.

It is not an unprimeable number, because it can be changed into a prime (56012423) 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 3 ways as a sum of consecutive naturals, for example, 1400291 + ... + 1400330.

It is an arithmetic number, because the mean of its divisors is an integer number (9802177).

Almost surely, 2^56012420 is an apocalyptic number.

It is an amenable number.

56012420 is an abundant number, since it is smaller than the sum of its proper divisors (61613704).

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

56012420 is a wasteful number, since it uses less digits than its factorization.

56012420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800630 (or 2800628 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 56012420 is about 7484.1445736971. The cubic root of 56012420 is about 382.6145185177.

Adding to 56012420 its reverse (2421065), we get a palindrome (58433485).

The spelling of 56012420 in words is "fifty-six million, twelve thousand, four hundred twenty".