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51080527555 = 5175393111431
BaseRepresentation
bin101111100100101000…
…101111111011000011
311212211220000122202221
4233210220233323003
51314103103340210
635244400551511
73455552214601
oct574450577303
9155756018687
1051080527555
111a732698432
129a96922597
134a80893445
142688040871
1514de6811da
hexbe4a2fec3

51080527555 has 16 divisors (see below), whose sum is σ = 64914934464. Its totient is φ = 38453155840.

The previous prime is 51080527513. The next prime is 51080527559. The reversal of 51080527555 is 55572508015.

It is not a de Polignac number, because 51080527555 - 229 = 50543656643 is a prime.

It is a super-2 number, since 2×510805275552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51080527559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402690 + ... + 514120.

It is an arithmetic number, because the mean of its divisors is an integer number (4057183404).

Almost surely, 251080527555 is an apocalyptic number.

51080527555 is a deficient number, since it is larger than the sum of its proper divisors (13834406909).

51080527555 is a wasteful number, since it uses less digits than its factorization.

51080527555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116846.

The product of its (nonzero) digits is 350000, while the sum is 43.

The spelling of 51080527555 in words is "fifty-one billion, eighty million, five hundred twenty-seven thousand, five hundred fifty-five".

Divisors: 1 5 17 85 5393 26965 91681 111431 458405 557155 1894327 9471635 600947383 3004736915 10216105511 51080527555