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56816540253 = 321137116313337
BaseRepresentation
bin110100111010100001…
…111001101001011101
312102122122100021221200
4310322201321221131
51412330013242003
642033503350113
74050652423644
oct647241715135
9172578307850
1056816540253
11221065016a0
12b0178b2339
1354860600b5
142a6db7235b
1517280206a3
hexd3a879a5d

56816540253 has 48 divisors (see below), whose sum is σ = 92034760896. Its totient is φ = 33472293120.

The previous prime is 56816540243. The next prime is 56816540269. The reversal of 56816540253 is 35204561865.

56816540253 is a `hidden beast` number, since 5 + 6 + 81 + 6 + 540 + 25 + 3 = 666.

It is not a de Polignac number, because 56816540253 - 212 = 56816536157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56816540199 and 56816540208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816540243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4253401 + ... + 4266737.

It is an arithmetic number, because the mean of its divisors is an integer number (1917390852).

Almost surely, 256816540253 is an apocalyptic number.

It is an amenable number.

56816540253 is a deficient number, since it is larger than the sum of its proper divisors (35218220643).

56816540253 is a wasteful number, since it uses less digits than its factorization.

56816540253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14554 (or 14551 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 56816540253 in words is "fifty-six billion, eight hundred sixteen million, five hundred forty thousand, two hundred fifty-three".

Divisors: 1 3 9 11 33 37 99 111 333 407 1163 1221 3489 3663 10467 12793 13337 38379 40011 43031 115137 120033 129093 146707 387279 440121 473341 493469 1320363 1420023 1480407 4260069 4441221 5428159 15510931 16284477 46532793 48853431 139598379 170620241 511860723 573904447 1535582169 1721713341 5165140023 6312948917 18938846751 56816540253