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56055505051 = 721326769171
BaseRepresentation
bin110100001101001010…
…110010000010011011
312100200121022200220201
4310031022302002123
51404300202130201
641430200003031
74023051634300
oct641512620233
9170617280821
1056055505051
1121855964687
12aa44a60477
1353944a0800
1429daa6b0a7
1516d12e3801
hexd0d2b209b

56055505051 has 18 divisors (see below), whose sum is σ = 70609233132. Its totient is φ = 44351601840.

The previous prime is 56055505039. The next prime is 56055505091. The reversal of 56055505051 is 15050555065.

It is not a de Polignac number, because 56055505051 - 25 = 56055505019 is a prime.

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 56055505051.

It is not an unprimeable number, because it can be changed into a prime (56055505091) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3376305 + ... + 3392866.

It is an arithmetic number, because the mean of its divisors is an integer number (3922735174).

Almost surely, 256055505051 is an apocalyptic number.

56055505051 is a deficient number, since it is larger than the sum of its proper divisors (14553728081).

56055505051 is a wasteful number, since it uses less digits than its factorization.

56055505051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6769211 (or 6769191 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 56055505051 in words is "fifty-six billion, fifty-five million, five hundred five thousand, fifty-one".

Divisors: 1 7 13 49 91 169 637 1183 8281 6769171 47384197 87999223 331689379 615994561 1143989899 4311961927 8007929293 56055505051