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25112250072 = 23337139713171
BaseRepresentation
bin10111011000110011…
…101000011011011000
32101211010010110222000
4113120303220123120
5402412214000242
615311510401000
71546206414030
oct273063503330
971733113860
1025112250072
11a717235188
124a4a060160
1324a2878a90
1413032468c0
159be996a4c
hex5d8ce86d8

25112250072 has 256 divisors, whose sum is σ = 86745523200. Its totient is φ = 6554234880.

The previous prime is 25112250061. The next prime is 25112250089. The reversal of 25112250072 is 27005221152.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1900047 + ... + 1913217.

It is an arithmetic number, because the mean of its divisors is an integer number (338849700).

Almost surely, 225112250072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25112250072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43372761600).

25112250072 is an abundant number, since it is smaller than the sum of its proper divisors (61633273128).

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

25112250072 is a wasteful number, since it uses less digits than its factorization.

25112250072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13303 (or 13293 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The spelling of 25112250072 in words is "twenty-five billion, one hundred twelve million, two hundred fifty thousand, seventy-two".