Search a number
-
+
25000153 = 53569829
BaseRepresentation
bin101111101011…
…1100011011001
31202001010202121
41133113203121
522400001103
62251501241
7422332513
oct137274331
952033677
1025000153
1113125a92
128457821
1352442b9
14346abb3
1522dc6bd
hex17d78d9

25000153 has 8 divisors (see below), whose sum is σ = 25547400. Its totient is φ = 24455808.

The previous prime is 25000147. The next prime is 25000163. The reversal of 25000153 is 35100052.

It can be written as a sum of positive squares in 4 ways, for example, as 3125824 + 21874329 = 1768^2 + 4677^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-25000153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25000133) 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, 29743 + ... + 30571.

It is an arithmetic number, because the mean of its divisors is an integer number (3193425).

Almost surely, 225000153 is an apocalyptic number.

It is an amenable number.

25000153 is a deficient number, since it is larger than the sum of its proper divisors (547247).

25000153 is an equidigital number, since it uses as much as digits as its factorization.

25000153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 25000153 is about 5000.0152999766. The cubic root of 25000153 is about 292.4023703197.

The spelling of 25000153 in words is "twenty-five million, one hundred fifty-three", and thus it is an aban number.

Divisors: 1 53 569 829 30157 43937 471701 25000153