[go: up one dir, main page]

Search a number
-
+
25305055 = 519266369
BaseRepresentation
bin110000010000…
…1111111011111
31202121122000021
41200201333133
522434230210
62302213011
7425042446
oct140417737
952548007
1025305055
1113314076
128584167
135320009
143509d5d
15234cbda
hex1821fdf

25305055 has 8 divisors (see below), whose sum is σ = 31964400. Its totient is φ = 19178496.

The previous prime is 25305053. The next prime is 25305097. The reversal of 25305055 is 55050352.

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 25305055 - 21 = 25305053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25305053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133090 + ... + 133279.

It is an arithmetic number, because the mean of its divisors is an integer number (3995550).

Almost surely, 225305055 is an apocalyptic number.

25305055 is a deficient number, since it is larger than the sum of its proper divisors (6659345).

25305055 is a wasteful number, since it uses less digits than its factorization.

25305055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266393.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 25305055 is about 5030.4130049132. The cubic root of 25305055 is about 293.5862839049.

The spelling of 25305055 in words is "twenty-five million, three hundred five thousand, fifty-five".

Divisors: 1 5 19 95 266369 1331845 5061011 25305055