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55705151685 = 353944394153
BaseRepresentation
bin110011111000010010…
…010010100011000101
312022210012001220110010
4303320102102203011
51403041004323220
641331322420433
74011265656021
oct637022224305
9168705056403
1055705151685
1121696118a47
12a967661719
135339a22821
1429a630b381
1516b068a1e0
hexcf84928c5

55705151685 has 16 divisors (see below), whose sum is σ = 89131449024. Its totient is φ = 29708345472.

The previous prime is 55705151669. The next prime is 55705151699. The reversal of 55705151685 is 58615150755.

It is not a de Polignac number, because 55705151685 - 24 = 55705151669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544569 + ... + 638721.

It is an arithmetic number, because the mean of its divisors is an integer number (5570715564).

Almost surely, 255705151685 is an apocalyptic number.

It is an amenable number.

55705151685 is a deficient number, since it is larger than the sum of its proper divisors (33426297339).

55705151685 is a wasteful number, since it uses less digits than its factorization.

55705151685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133604.

The product of its (nonzero) digits is 1050000, while the sum is 48.

The spelling of 55705151685 in words is "fifty-five billion, seven hundred five million, one hundred fifty-one thousand, six hundred eighty-five".

Divisors: 1 3 5 15 39443 94153 118329 197215 282459 470765 591645 1412295 3713676779 11141030337 18568383895 55705151685