Search a number
-
+
56025131 is a prime number
BaseRepresentation
bin1101010110111…
…0000000101011
310220102101000212
43111232000223
5103320301011
65320451335
71250130401
oct325560053
9126371025
1056025131
1129696568
1216919b4b
13b7b7986
147625471
154dba08b
hex356e02b

56025131 has 2 divisors, whose sum is σ = 56025132. Its totient is φ = 56025130.

The previous prime is 56025127. The next prime is 56025133. The reversal of 56025131 is 13152065.

56025131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56025131 - 22 = 56025127 is a prime.

It is a super-2 number, since 2×560251312 = 6277630607134322, which contains 22 as substring.

Together with 56025133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56025097 and 56025106.

It is not a weakly prime, because it can be changed into another prime (56025133) 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 as a sum of consecutive naturals, namely, 28012565 + 28012566.

It is an arithmetic number, because the mean of its divisors is an integer number (28012566).

Almost surely, 256025131 is an apocalyptic number.

56025131 is a deficient number, since it is larger than the sum of its proper divisors (1).

56025131 is an equidigital number, since it uses as much as digits as its factorization.

56025131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 56025131 is about 7484.9937207722. The cubic root of 56025131 is about 382.6434587973.

Adding to 56025131 its reverse (13152065), we get a palindrome (69177196).

The spelling of 56025131 in words is "fifty-six million, twenty-five thousand, one hundred thirty-one".