Search a number
-
+
25335145 = 511557827
BaseRepresentation
bin110000010100…
…1010101101001
31202200011021201
41200221111221
522441211040
62303004201
7425226253
oct140512551
952604251
1025335145
1113334740
128599661
135330914
143516cd3
152356a9a
hex1829569

25335145 has 16 divisors (see below), whose sum is σ = 33265728. Its totient is φ = 18370240.

The previous prime is 25335133. The next prime is 25335157. The reversal of 25335145 is 54153352.

It is an interprime number because it is at equal distance from previous prime (25335133) and next prime (25335157).

It is not a de Polignac number, because 25335145 - 27 = 25335017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30222 + ... + 31048.

It is an arithmetic number, because the mean of its divisors is an integer number (2079108).

Almost surely, 225335145 is an apocalyptic number.

It is an amenable number.

25335145 is a deficient number, since it is larger than the sum of its proper divisors (7930583).

25335145 is a wasteful number, since it uses less digits than its factorization.

25335145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its digits is 9000, while the sum is 28.

The square root of 25335145 is about 5033.4029244637. The cubic root of 25335145 is about 293.7026046968.

Adding to 25335145 its reverse (54153352), we get a palindrome (79488497).

The spelling of 25335145 in words is "twenty-five million, three hundred thirty-five thousand, one hundred forty-five".

Divisors: 1 5 11 55 557 827 2785 4135 6127 9097 30635 45485 460639 2303195 5067029 25335145