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75625355057 = 721543374593
BaseRepresentation
bin100011001101110011…
…1110101011100110001
321020012110110002022012
41012123213311130301
52214340042330212
654424121452305
75315031624500
oct1063347653461
9236173402265
1075625355057
112a0885a563a
12127a6941095
137192a0b805
143935b80837
151e793e2922
hex119b9f5731

75625355057 has 6 divisors (see below), whose sum is σ = 87972351858. Its totient is φ = 64821732864.

The previous prime is 75625355053. The next prime is 75625355063. The reversal of 75625355057 is 75055352657.

It can be written as a sum of positive squares in only one way, i.e., 75341466256 + 283888801 = 274484^2 + 16849^2 .

It is not a de Polignac number, because 75625355057 - 22 = 75625355053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75625354996 and 75625355014.

It is not an unprimeable number, because it can be changed into a prime (75625355053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 771687248 + ... + 771687345.

It is an arithmetic number, because the mean of its divisors is an integer number (14662058643).

Almost surely, 275625355057 is an apocalyptic number.

It is an amenable number.

75625355057 is a deficient number, since it is larger than the sum of its proper divisors (12346996801).

75625355057 is a wasteful number, since it uses less digits than its factorization.

75625355057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543374607 (or 1543374600 counting only the distinct ones).

The product of its (nonzero) digits is 5512500, while the sum is 50.

The spelling of 75625355057 in words is "seventy-five billion, six hundred twenty-five million, three hundred fifty-five thousand, fifty-seven".

Divisors: 1 7 49 1543374593 10803622151 75625355057