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25455030145 = 510349427243
BaseRepresentation
bin10111101101001111…
…001110111110000001
32102201000010111211021
4113231033032332001
5404112441431040
615405513345441
71560541120606
oct275517167601
972630114737
1025455030145
11a8827789a6
124b24a08281
1325288a491c
1413369946ad
159deb0624a
hex5ed3cef81

25455030145 has 8 divisors (see below), whose sum is σ = 30842600256. Its totient is φ = 20166314736.

The previous prime is 25455030137. The next prime is 25455030157. The reversal of 25455030145 is 54103055452.

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 25455030145 - 23 = 25455030137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25455030145.

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, 24713107 + ... + 24714136.

It is an arithmetic number, because the mean of its divisors is an integer number (3855325032).

Almost surely, 225455030145 is an apocalyptic number.

It is an amenable number.

25455030145 is a deficient number, since it is larger than the sum of its proper divisors (5387570111).

25455030145 is a wasteful number, since it uses less digits than its factorization.

25455030145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49427351.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 25455030145 its reverse (54103055452), we get a palindrome (79558085597).

The spelling of 25455030145 in words is "twenty-five billion, four hundred fifty-five million, thirty thousand, one hundred forty-five".

Divisors: 1 5 103 515 49427243 247136215 5091006029 25455030145