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7385552840225 = 52761691855067
BaseRepresentation
bin110101101111001010101…
…0000001110011000100001
3222011001101212122120220102
41223132111100032120201
51432001103011341400
623412513124552145
71361405612222660
oct153362520163041
928131355576812
107385552840225
11239821704577a
129b3452852655
134175bab13b01
141b76697a2dd7
15cc1adad79d5
hex6b79540e621

7385552840225 has 24 divisors (see below), whose sum is σ = 10637963525568. Its totient is φ = 4981356475200.

The previous prime is 7385552840213. The next prime is 7385552840243. The reversal of 7385552840225 is 5220482555837.

It is not a de Polignac number, because 7385552840225 - 214 = 7385552823841 is a prime.

It is a Duffinian number.

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, 345916859 + ... + 345938208.

It is an arithmetic number, because the mean of its divisors is an integer number (443248480232).

Almost surely, 27385552840225 is an apocalyptic number.

It is an amenable number.

7385552840225 is a deficient number, since it is larger than the sum of its proper divisors (3252410685343).

7385552840225 is a wasteful number, since it uses less digits than its factorization.

7385552840225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691855145 (or 691855140 counting only the distinct ones).

The product of its (nonzero) digits is 26880000, while the sum is 56.

The spelling of 7385552840225 in words is "seven trillion, three hundred eighty-five billion, five hundred fifty-two million, eight hundred forty thousand, two hundred twenty-five".

Divisors: 1 5 7 25 35 61 175 305 427 1525 2135 10675 691855067 3459275335 4842985469 17296376675 24214927345 42203159087 121074636725 211015795435 295422113609 1055078977175 1477110568045 7385552840225