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53331077509 = 312111814949
BaseRepresentation
bin110001101010110001…
…111010100110000101
312002122201211102220221
4301222301322212011
51333210223440014
640255554024341
73565410451663
oct615261724605
9162581742827
1053331077509
1120688003976
12a4045780b1
13504bc135c8
14281ccb9c33
1515c2035b24
hexc6ac7a985

53331077509 has 8 divisors (see below), whose sum is σ = 55077580800. Its totient is φ = 51586208400.

The previous prime is 53331077479. The next prime is 53331077521. The reversal of 53331077509 is 90577013335.

53331077509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53331077509 - 211 = 53331075461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53331077309) 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, 342034 + ... + 472915.

It is an arithmetic number, because the mean of its divisors is an integer number (6884697600).

Almost surely, 253331077509 is an apocalyptic number.

It is an amenable number.

53331077509 is a deficient number, since it is larger than the sum of its proper divisors (1746503291).

53331077509 is a wasteful number, since it uses less digits than its factorization.

53331077509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817091.

The product of its (nonzero) digits is 297675, while the sum is 43.

The spelling of 53331077509 in words is "fifty-three billion, three hundred thirty-one million, seventy-seven thousand, five hundred nine".

Divisors: 1 31 2111 65441 814949 25263419 1720357339 53331077509