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25568232480 = 2532577334747
BaseRepresentation
bin10111110011111111…
…000100010000100000
32102222220010210020100
4113303333010100200
5404330431414410
615425035542400
71563414250560
oct276377042040
972886123210
1025568232480
11a93066754a
124b568baa00
13254618b75b
141347a20da0
159e9a178c0
hex5f3fc4420

25568232480 has 288 divisors, whose sum is σ = 101084989824. Its totient is φ = 5763944448.

The previous prime is 25568232467. The next prime is 25568232497. The reversal of 25568232480 is 8423286552.

25568232480 is a `hidden beast` number, since 2 + 5 + 568 + 2 + 3 + 2 + 4 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 718467 + ... + 753213.

It is an arithmetic number, because the mean of its divisors is an integer number (350989548).

Almost surely, 225568232480 is an apocalyptic number.

25568232480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25568232480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50542494912).

25568232480 is an abundant number, since it is smaller than the sum of its proper divisors (75516757344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25568232480 is a wasteful number, since it uses less digits than its factorization.

25568232480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34848 (or 34837 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 25568232480 in words is "twenty-five billion, five hundred sixty-eight million, two hundred thirty-two thousand, four hundred eighty".