56272730 has 16 divisors (see below), whose sum is σ = 101377224. Its totient is φ = 22489920.

The previous prime is 56272709. The next prime is 56272739. The reversal of 56272730 is 3727265.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40360609 + 15912121 = 6353^2 + 3989^2 .

It is not an unprimeable number, because it can be changed into a prime (56272739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19160 + ... + 21900.

Almost surely, 2^56272730 is an apocalyptic number.

56272730 is a deficient number, since it is larger than the sum of its proper divisors (45104494).

56272730 is a wasteful number, since it uses less digits than its factorization.

56272730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 56272730 is about 7501.5151802819. The cubic root of 56272730 is about 383.2063187679.

Adding to 56272730 its reverse (3727265), we get a palindrome (59999995).

The spelling of 56272730 in words is "fifty-six million, two hundred seventy-two thousand, seven hundred thirty".