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53005041505 = 513815462177
BaseRepresentation
bin110001010111010110…
…001011111101100001
312001211000100002121101
4301113112023331201
51332023242312010
640203345554401
73554341263463
oct612726137541
9161730302541
1053005041505
112052aa67229
12a333345a01
134cc94cabb0
1427cb88a133
1515a35d273a
hexc5758bf61

53005041505 has 8 divisors (see below), whose sum is σ = 68498822952. Its totient is φ = 39142184448.

The previous prime is 53005041503. The next prime is 53005041517. The reversal of 53005041505 is 50514050035.

It can be written as a sum of positive squares in 4 ways, for example, as 5341855744 + 47663185761 = 73088^2 + 218319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53005041505 - 21 = 53005041503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53005041503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407731024 + ... + 407731153.

It is an arithmetic number, because the mean of its divisors is an integer number (8562352869).

Almost surely, 253005041505 is an apocalyptic number.

It is an amenable number.

53005041505 is a deficient number, since it is larger than the sum of its proper divisors (15493781447).

53005041505 is a wasteful number, since it uses less digits than its factorization.

53005041505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815462195.

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 53005041505 in words is "fifty-three billion, five million, forty-one thousand, five hundred five".

Divisors: 1 5 13 65 815462177 4077310885 10601008301 53005041505