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53005505057 = 537316378369
BaseRepresentation
bin110001010111010111…
…111101001000100001
312001211001012122110222
4301113113331020201
51332023402130212
640203403532425
73554345234111
oct612727751041
9161731178428
1053005505057
112053025352a
12a33352a115
134cc9630b9b
1427cb96b041
1515a3674c72
hexc575fd221

53005505057 has 16 divisors (see below), whose sum is σ = 54785399760. Its totient is φ = 51255539712.

The previous prime is 53005505053. The next prime is 53005505083. The reversal of 53005505057 is 75050550035.

It can be written as a sum of positive squares in 8 ways, for example, as 88943761 + 52916561296 = 9431^2 + 230036^2 .

It is a cyclic number.

It is not a de Polignac number, because 53005505057 - 22 = 53005505053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53005505053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6329369 + ... + 6337737.

It is an arithmetic number, because the mean of its divisors is an integer number (3424087485).

Almost surely, 253005505057 is an apocalyptic number.

It is an amenable number.

53005505057 is a deficient number, since it is larger than the sum of its proper divisors (1779894703).

53005505057 is a wasteful number, since it uses less digits than its factorization.

53005505057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10132.

The product of its (nonzero) digits is 65625, while the sum is 35.

The spelling of 53005505057 in words is "fifty-three billion, five million, five hundred five thousand, fifty-seven".

Divisors: 1 53 73 1637 3869 8369 86761 119501 443557 610937 6333553 13700053 32379661 726102809 1000103869 53005505057