56730042 has 12 divisors (see below), whose sum is σ = 122915130. Its totient is φ = 18910008.

The previous prime is 56730041. The next prime is 56730043. The reversal of 56730042 is 24003765.

It is a happy number.

56730042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56730041) and next prime (56730043).

It can be written as a sum of positive squares in only one way, i.e., 32729841 + 24000201 = 5721^2 + 4899^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56729988 and 56730015.

It is not an unprimeable number, because it can be changed into a prime (56730041) 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 5 ways as a sum of consecutive naturals, for example, 1575817 + ... + 1575852.

Almost surely, 2^56730042 is an apocalyptic number.

56730042 is an abundant number, since it is smaller than the sum of its proper divisors (66185088).

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

56730042 is a wasteful number, since it uses less digits than its factorization.

56730042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151677 (or 3151674 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 56730042 is about 7531.9348111890. The cubic root of 56730042 is about 384.2415878856.

The spelling of 56730042 in words is "fifty-six million, seven hundred thirty thousand, forty-two".