Search a number
-
+
25064669 = 73839349
BaseRepresentation
bin101111110011…
…1010011011101
31202011102021002
41133213103131
522404032134
62253120045
7423021560
oct137472335
952142232
1025064669
111316a503
128489025
135267786
1434864d7
15230187e
hex17e74dd

25064669 has 8 divisors (see below), whose sum is σ = 28723200. Its totient is φ = 21425616.

The previous prime is 25064639. The next prime is 25064693. The reversal of 25064669 is 96646052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25064669 - 216 = 24999133 is a prime.

It is a super-2 number, since 2×250646692 = 1256475264159122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25064639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 7355.

It is an arithmetic number, because the mean of its divisors is an integer number (3590400).

Almost surely, 225064669 is an apocalyptic number.

It is an amenable number.

25064669 is a deficient number, since it is larger than the sum of its proper divisors (3658531).

25064669 is an equidigital number, since it uses as much as digits as its factorization.

25064669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9739.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 25064669 is about 5006.4627233207. The cubic root of 25064669 is about 292.6536811422.

The spelling of 25064669 in words is "twenty-five million, sixty-four thousand, six hundred sixty-nine".

Divisors: 1 7 383 2681 9349 65443 3580667 25064669