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55768531315 = 571593386609
BaseRepresentation
bin110011111100000100…
…000100000101110011
312022221121022220221211
4303330010010011303
51403203221000230
641341505100551
74012665460210
oct637404040563
9168847286854
1055768531315
1121718978002
12a984927757
135349bb3b73
1429b08c8b07
1516b600942a
hexcfc104173

55768531315 has 8 divisors (see below), whose sum is σ = 76482557280. Its totient is φ = 38241278592.

The previous prime is 55768531309. The next prime is 55768531363. The reversal of 55768531315 is 51313586755.

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 55768531315 - 23 = 55768531307 is a prime.

It is a super-2 number, since 2×557685313152 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796693270 + ... + 796693339.

It is an arithmetic number, because the mean of its divisors is an integer number (9560319660).

Almost surely, 255768531315 is an apocalyptic number.

55768531315 is a deficient number, since it is larger than the sum of its proper divisors (20714025965).

55768531315 is a wasteful number, since it uses less digits than its factorization.

55768531315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593386621.

The product of its digits is 1890000, while the sum is 49.

The spelling of 55768531315 in words is "fifty-five billion, seven hundred sixty-eight million, five hundred thirty-one thousand, three hundred fifteen".

Divisors: 1 5 7 35 1593386609 7966933045 11153706263 55768531315