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53566731149 = 83829778507
BaseRepresentation
bin110001111000110100…
…110111001110001101
312010021011020212221112
4301320310313032031
51334201040344044
640335212541405
73604301462561
oct617064671615
9163234225845
1053566731149
1120799028a48
12a46b481865
1350889a2029
1428422dd6a1
1515d7a8409e
hexc78d3738d

53566731149 has 8 divisors (see below), whose sum is σ = 54277577760. Its totient is φ = 52857443376.

The previous prime is 53566731089. The next prime is 53566731151. The reversal of 53566731149 is 94113766535.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-53566731149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53566731097 and 53566731106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53566751149) 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, 320447 + ... + 458060.

It is an arithmetic number, because the mean of its divisors is an integer number (6784697220).

Almost surely, 253566731149 is an apocalyptic number.

It is an amenable number.

53566731149 is a deficient number, since it is larger than the sum of its proper divisors (710846611).

53566731149 is an equidigital number, since it uses as much as digits as its factorization.

53566731149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779419.

The product of its digits is 2041200, while the sum is 50.

The spelling of 53566731149 in words is "fifty-three billion, five hundred sixty-six million, seven hundred thirty-one thousand, one hundred forty-nine".

Divisors: 1 83 829 68807 778507 64616081 645382303 53566731149