Search a number
-
+
25505255005 = 510349524767
BaseRepresentation
bin10111110000001110…
…110100111001011101
32102211111122012101021
4113300032310321131
5404213321130010
615414510044141
71562021043016
oct276016647135
972744565337
1025505255005
11a8a906264a
124b397a9651
13253610b489
14133d50a00d
159e42278da
hex5f03b4e5d

25505255005 has 8 divisors (see below), whose sum is σ = 30903455232. Its totient is φ = 20206104528.

The previous prime is 25505254961. The next prime is 25505255033. The reversal of 25505255005 is 50055250552.

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 25505255005 - 29 = 25505254493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24761869 + ... + 24762898.

It is an arithmetic number, because the mean of its divisors is an integer number (3862931904).

Almost surely, 225505255005 is an apocalyptic number.

It is an amenable number.

25505255005 is a deficient number, since it is larger than the sum of its proper divisors (5398200227).

25505255005 is a wasteful number, since it uses less digits than its factorization.

25505255005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49524875.

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 25505255005 in words is "twenty-five billion, five hundred five million, two hundred fifty-five thousand, five".

Divisors: 1 5 103 515 49524767 247623835 5101051001 25505255005