Search a number
-
+
25050005 = 537913219
BaseRepresentation
bin101111110001…
…1101110010101
31202010200010222
41133203232111
522403100010
62252524125
7422631041
oct137435625
952120128
1025050005
111315a492
128480645
135260bb6
143481021
1522ec355
hex17e3b95

25050005 has 8 divisors (see below), whose sum is σ = 30141600. Its totient is φ = 19985616.

The previous prime is 25050001. The next prime is 25050019. The reversal of 25050005 is 50005052.

It is a happy number.

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 25050005 - 22 = 25050001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25050001) 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, 4715 + ... + 8504.

It is an arithmetic number, because the mean of its divisors is an integer number (3767700).

Almost surely, 225050005 is an apocalyptic number.

It is an amenable number.

25050005 is a deficient number, since it is larger than the sum of its proper divisors (5091595).

25050005 is a wasteful number, since it uses less digits than its factorization.

25050005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13603.

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 25050005 is about 5004.9980019976. The cubic root of 25050005 is about 292.5965979925.

Adding to 25050005 its reverse (50005052), we get a palindrome (75055057).

The spelling of 25050005 in words is "twenty-five million, fifty thousand, five".

Divisors: 1 5 379 1895 13219 66095 5010001 25050005