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25255055311 = 31378050703
BaseRepresentation
bin10111100001010100…
…011000111111001111
32102012001211201220221
4113201110120333033
5403210243232221
615334011252211
71552562266603
oct274124307717
972161751827
1025255055311
11a78a902942
124a89a4a067
1324c6328c15
1413181bb503
159cc2a4541
hex5e1518fcf

25255055311 has 4 divisors (see below), whose sum is σ = 25263109152. Its totient is φ = 25247001472.

The previous prime is 25255055299. The next prime is 25255055323. The reversal of 25255055311 is 11355055252.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25255055299) and next prime (25255055323).

It is a cyclic number.

It is not a de Polignac number, because 25255055311 - 217 = 25254924239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255055351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022215 + ... + 4028488.

It is an arithmetic number, because the mean of its divisors is an integer number (6315777288).

Almost surely, 225255055311 is an apocalyptic number.

25255055311 is a deficient number, since it is larger than the sum of its proper divisors (8053841).

25255055311 is an equidigital number, since it uses as much as digits as its factorization.

25255055311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053840.

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 25255055311 in words is "twenty-five billion, two hundred fifty-five million, fifty-five thousand, three hundred eleven".

Divisors: 1 3137 8050703 25255055311