[go: up one dir, main page]

Search a number
-
+
25065061 = 773181271
BaseRepresentation
bin101111110011…
…1011001100101
31202011102210121
41133213121211
522404040221
62253121541
7423022660
oct137473145
952142717
1025065061
111316a82a
1284892b1
1352679c8
1434866d7
152301a41
hex17e7665

25065061 has 16 divisors (see below), whose sum is σ = 29306368. Its totient is φ = 20995200.

The previous prime is 25065017. The next prime is 25065097. The reversal of 25065061 is 16056052.

It is a 8-Lehmer number, since φ(25065061) divides (25065061-1)8.

It is a cyclic number.

It is not a de Polignac number, because 25065061 - 213 = 25056869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25065011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92356 + ... + 92626.

It is an arithmetic number, because the mean of its divisors is an integer number (1831648).

Almost surely, 225065061 is an apocalyptic number.

It is an amenable number.

25065061 is a deficient number, since it is larger than the sum of its proper divisors (4241307).

25065061 is a wasteful number, since it uses less digits than its factorization.

25065061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25065061 is about 5006.5018725653. The cubic root of 25065061 is about 292.6552067910.

Subtracting from 25065061 its reverse (16056052), we obtain a palindrome (9009009).

The spelling of 25065061 in words is "twenty-five million, sixty-five thousand, sixty-one".

Divisors: 1 7 73 181 271 511 1267 1897 13213 19783 49051 92491 138481 343357 3580723 25065061