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25002750025 = 5211731379091
BaseRepresentation
bin10111010010010001…
…111011000001001001
32101112111002022010201
4113102101323001021
5402201201000100
615252555412201
71543406603641
oct272221730111
971474068121
1025002750025
11a670445180
124a19454061
132485c8a156
1412d28a1521
159b506736a
hex5d247b049

25002750025 has 48 divisors (see below), whose sum is σ = 34539271488. Its totient is φ = 17801856000.

The previous prime is 25002749999. The next prime is 25002750041. The reversal of 25002750025 is 52005720052.

It is not a de Polignac number, because 25002750025 - 231 = 22855266377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25002749975 and 25002750002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2745730 + ... + 2754820.

It is an arithmetic number, because the mean of its divisors is an integer number (719568156).

Almost surely, 225002750025 is an apocalyptic number.

25002750025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25002750025 is a deficient number, since it is larger than the sum of its proper divisors (9536521463).

25002750025 is a wasteful number, since it uses less digits than its factorization.

25002750025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9322 (or 9317 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The spelling of 25002750025 in words is "twenty-five billion, two million, seven hundred fifty thousand, twenty-five".

Divisors: 1 5 11 25 55 73 137 275 365 685 803 1507 1825 3425 4015 7535 9091 10001 20075 37675 45455 50005 100001 110011 227275 250025 500005 550055 663643 1245467 2500025 2750275 3318215 6227335 7300073 13700137 16591075 31136675 36500365 68500685 90919091 182501825 342503425 454595455 1000110001 2272977275 5000550005 25002750025