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55750274140 = 22511318174527
BaseRepresentation
bin110011111010111110…
…011010110001011100
312022220022222100211011
4303322332122301130
51403134032233030
641340013505004
74012354340251
oct637276326134
9168808870734
1055750274140
1121709638130
12a97a7a2164
135346190ac2
1429ac2d5428
1516b45eeb2a
hexcfaf9ac5c

55750274140 has 48 divisors (see below), whose sum is σ = 131838787584. Its totient is φ = 19618862400.

The previous prime is 55750274137. The next prime is 55750274141. The reversal of 55750274140 is 4147205755.

It is a junction number, because it is equal to n+sod(n) for n = 55750274093 and 55750274102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55750274141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4080444 + ... + 4094083.

It is an arithmetic number, because the mean of its divisors is an integer number (2746641408).

Almost surely, 255750274140 is an apocalyptic number.

It is an amenable number.

55750274140 is an abundant number, since it is smaller than the sum of its proper divisors (76088513444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55750274140 is a wasteful number, since it uses less digits than its factorization.

55750274140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174578 (or 8174576 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 40.

Adding to 55750274140 its reverse (4147205755), we get a palindrome (59897479895).

The spelling of 55750274140 in words is "fifty-five billion, seven hundred fifty million, two hundred seventy-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 31 44 55 62 110 124 155 220 310 341 620 682 1364 1705 3410 6820 8174527 16349054 32698108 40872635 81745270 89919797 163490540 179839594 253410337 359679188 449598985 506820674 899197970 1013641348 1267051685 1798395940 2534103370 2787513707 5068206740 5575027414 11150054828 13937568535 27875137070 55750274140