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56038501 = 65385817
BaseRepresentation
bin1101010111000…
…1010001100101
310220110001101001
43111301101211
5103321213001
65321033301
71250214361
oct325612145
9126401331
1056038501
11296a5612
1216925831
13b7c0a9c
14762a2a1
154dbe001
hex3571465

56038501 has 4 divisors (see below), whose sum is σ = 56124972. Its totient is φ = 55952032.

The previous prime is 56038471. The next prime is 56038517. The reversal of 56038501 is 10583065.

56038501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19448100 + 36590401 = 4410^2 + 6049^2 .

It is a cyclic number.

It is not a de Polignac number, because 56038501 - 219 = 55514213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56038501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56038531) 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, 42256 + ... + 43561.

It is an arithmetic number, because the mean of its divisors is an integer number (14031243).

Almost surely, 256038501 is an apocalyptic number.

It is an amenable number.

56038501 is a deficient number, since it is larger than the sum of its proper divisors (86471).

56038501 is an equidigital number, since it uses as much as digits as its factorization.

56038501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86470.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 56038501 is about 7485.8867878161. The cubic root of 56038501 is about 382.6738947585.

The spelling of 56038501 in words is "fifty-six million, thirty-eight thousand, five hundred one".

Divisors: 1 653 85817 56038501