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25538680410245 = 519345131586403
BaseRepresentation
bin1011100111010001011111…
…11110010101000010000101
310100102110210112210202222022
411303220233332111002011
511321411204141111440
6130152150253212525
75244052210513652
oct563505776250205
9110373715722868
1025538680410245
118156991332792
122a45698491145
131133397071882
14644116054c29
152e44bde12cb5
hex173a2ff95085

25538680410245 has 16 divisors (see below), whose sum is σ = 30805941321792. Its totient is φ = 20324599495680.

The previous prime is 25538680410211. The next prime is 25538680410251. The reversal of 25538680410245 is 54201408683552.

It is not a de Polignac number, because 25538680410245 - 28 = 25538680409989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43258214 + ... + 43844616.

It is an arithmetic number, because the mean of its divisors is an integer number (1925371332612).

Almost surely, 225538680410245 is an apocalyptic number.

It is an amenable number.

25538680410245 is a deficient number, since it is larger than the sum of its proper divisors (5267260911547).

25538680410245 is a wasteful number, since it uses less digits than its factorization.

25538680410245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631732.

The product of its (nonzero) digits is 9216000, while the sum is 53.

The spelling of 25538680410245 in words is "twenty-five trillion, five hundred thirty-eight billion, six hundred eighty million, four hundred ten thousand, two hundred forty-five".

Divisors: 1 5 193 965 45131 225655 586403 2932015 8710283 43551415 113175779 565878895 26464953793 132324768965 5107736082049 25538680410245