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2105525425 = 52293193683
BaseRepresentation
bin111110101111111…
…1100010010110001
312102201220202220011
41331133330102301
513303003303200
6544532414521
7103114446043
oct17537742261
95381822804
102105525425
11990572463
124a9177441
132772a3b43
1415d8c7a93
15c4ca95ba
hex7d7fc4b1

2105525425 has 24 divisors (see below), whose sum is σ = 2788035840. Its totient is φ = 1573857600.

The previous prime is 2105525419. The next prime is 2105525431. The reversal of 2105525425 is 5245255012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2105525419) and next prime (2105525431).

It is not a de Polignac number, because 2105525425 - 25 = 2105525393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24367 + ... + 69316.

It is an arithmetic number, because the mean of its divisors is an integer number (116168160).

Almost surely, 22105525425 is an apocalyptic number.

2105525425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2105525425 is a deficient number, since it is larger than the sum of its proper divisors (682510415).

2105525425 is a wasteful number, since it uses less digits than its factorization.

2105525425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93753 (or 93748 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2105525425 is about 45886.0046746282. The cubic root of 2105525425 is about 1281.7013153677.

The spelling of 2105525425 in words is "two billion, one hundred five million, five hundred twenty-five thousand, four hundred twenty-five".

Divisors: 1 5 25 29 31 145 155 725 775 899 4495 22475 93683 468415 2342075 2716807 2904173 13584035 14520865 67920175 72604325 84221017 421105085 2105525425