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55791019756 = 2231771439009
BaseRepresentation
bin110011111101011001…
…110110011011101100
312100000011122110022001
4303331121312123230
51403230000113011
641344031102044
74013360562163
oct637531663354
9170004573261
1055791019756
112172a63799a
12a990371924
135351758b34
1429b38a03da
1516b7e9c7c1
hexcfd6766ec

55791019756 has 12 divisors (see below), whose sum is σ = 97637580040. Its totient is φ = 27894568320.

The previous prime is 55791019727. The next prime is 55791019769. The reversal of 55791019756 is 65791019755.

It is a super-2 number, since 2×557910197562 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55791019697 and 55791019706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92421 + ... + 346588.

Almost surely, 255791019756 is an apocalyptic number.

It is an amenable number.

55791019756 is a deficient number, since it is larger than the sum of its proper divisors (41846560284).

55791019756 is a wasteful number, since it uses less digits than its factorization.

55791019756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470784 (or 470782 counting only the distinct ones).

The product of its (nonzero) digits is 2976750, while the sum is 55.

Subtracting 55791019756 from its reverse (65791019755), we obtain a palindrome (9999999999).

The spelling of 55791019756 in words is "fifty-five billion, seven hundred ninety-one million, nineteen thousand, seven hundred fifty-six".

Divisors: 1 2 4 31771 63542 127084 439009 878018 1756036 13947754939 27895509878 55791019756