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2508989825 = 52277362309
BaseRepresentation
bin1001010110001100…
…0010010110000001
320110212002220000002
42111203002112001
520114300133300
61052544205345
7116114030066
oct22543022601
96425086002
102508989825
111078294211
125a0309855
1330ca59284
1419b310c6d
15ea4045d5
hex958c2581

2508989825 has 12 divisors (see below), whose sum is σ = 3122387580. Its totient is φ = 1999940160.

The previous prime is 2508989789. The next prime is 2508989827. The reversal of 2508989825 is 5289898052.

It can be written as a sum of positive squares in 6 ways, for example, as 128232976 + 2380756849 = 11324^2 + 48793^2 .

It is not a de Polignac number, because 2508989825 - 212 = 2508985729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2508989827) 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, 174230 + ... + 188079.

It is an arithmetic number, because the mean of its divisors is an integer number (260198965).

Almost surely, 22508989825 is an apocalyptic number.

2508989825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2508989825 is a deficient number, since it is larger than the sum of its proper divisors (613397755).

2508989825 is a wasteful number, since it uses less digits than its factorization.

2508989825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362596 (or 362591 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 56.

The square root of 2508989825 is about 50089.8175780268. The cubic root of 2508989825 is about 1358.8336715096.

The spelling of 2508989825 in words is "two billion, five hundred eight million, nine hundred eighty-nine thousand, eight hundred twenty-five".

Divisors: 1 5 25 277 1385 6925 362309 1811545 9057725 100359593 501797965 2508989825