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53008918560 = 25335132174271
BaseRepresentation
bin110001010111100100…
…111110100000100000
312001211021122001221000
4301113210332200200
51332030240343220
640204005032000
73554416242033
oct612744764040
9161737561830
1053008918560
1120532175104
12a3346b5600
134cca257800
1427cc1b901a
1515a3aeb390
hexc5793e820

53008918560 has 576 divisors, whose sum is σ = 212768156160. Its totient is φ = 12277923840.

The previous prime is 53008918559. The next prime is 53008918561. The reversal of 53008918560 is 6581980035.

53008918560 is a `hidden beast` number, since 5 + 3 + 0 + 0 + 89 + 1 + 8 + 560 = 666.

It is an interprime number because it is at equal distance from previous prime (53008918559) and next prime (53008918561).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53008918561) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12409225 + ... + 12413495.

It is an arithmetic number, because the mean of its divisors is an integer number (369389160).

Almost surely, 253008918560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53008918560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106384078080).

53008918560 is an abundant number, since it is smaller than the sum of its proper divisors (159759237600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53008918560 is a wasteful number, since it uses less digits than its factorization.

53008918560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4338 (or 4311 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 53008918560 in words is "fifty-three billion, eight million, nine hundred eighteen thousand, five hundred sixty".