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25000925000 = 23551000037
BaseRepresentation
bin10111010010001010…
…111101011101001000
32101112100122120200012
4113102022331131020
5402200214100000
615252452331052
71543355233112
oct272212753510
971470576605
1025000925000
11a66a408a97
124a18913a88
13248579b55c
1412d25483b2
159b4d06735
hex5d22bd748

25000925000 has 48 divisors (see below), whose sum is σ = 58592226420. Its totient is φ = 10000360000.

The previous prime is 25000924987. The next prime is 25000925003. The reversal of 25000925000 is 52900052.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 231831076 + 24769093924 = 15226^2 + 157382^2 .

25000925000 is a modest number, since divided by 925000 gives 25000 as remainder.

It is not an unprimeable number, because it can be changed into a prime (25000925003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475019 + ... + 525018.

Almost surely, 225000925000 is an apocalyptic number.

25000925000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25000925000 is an abundant number, since it is smaller than the sum of its proper divisors (33591301420).

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

25000925000 is an equidigital number, since it uses as much as digits as its factorization.

25000925000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000068 (or 1000044 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 25000925000 in words is "twenty-five billion, nine hundred twenty-five thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 625 1000 1250 2500 3125 5000 6250 12500 25000 1000037 2000074 4000148 5000185 8000296 10000370 20000740 25000925 40001480 50001850 100003700 125004625 200007400 250009250 500018500 625023125 1000037000 1250046250 2500092500 3125115625 5000185000 6250231250 12500462500 25000925000