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55765056755 = 5234319975647
BaseRepresentation
bin110011111011110110…
…110011110011110011
312022221100210101202102
4303323312303303303
51403201323304010
641341302411015
74012624106252
oct637366636363
9168840711672
1055765056755
1121716a14571
12a983730a6b
135349268505
1429b0262799
1516b5a6eba5
hexcfbdb3cf3

55765056755 has 32 divisors (see below), whose sum is σ = 71499884544. Its totient is φ = 41651761536.

The previous prime is 55765056749. The next prime is 55765056779.

It is a happy number.

55765056755 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 55765056755 - 26 = 55765056691 is a prime.

It is a super-2 number, since 2×557650567552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55765056755.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9872342 + ... + 9877988.

It is an arithmetic number, because the mean of its divisors is an integer number (2234371392).

Almost surely, 255765056755 is an apocalyptic number.

55765056755 is a deficient number, since it is larger than the sum of its proper divisors (15734827789).

55765056755 is a wasteful number, since it uses less digits than its factorization.

55765056755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7715.

The product of its (nonzero) digits is 27562500, while the sum is 56.

The spelling of 55765056755 in words is "fifty-five billion, seven hundred sixty-five million, fifty-six thousand, seven hundred fifty-five".

Divisors: 1 5 23 43 115 215 989 1997 4945 5647 9985 28235 45931 85871 129881 229655 242821 429355 649405 1214105 1975033 5584883 9875165 11277059 27924415 56385295 259372357 484913537 1296861785 2424567685 11153011351 55765056755