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55750747949 = 1323670327817
BaseRepresentation
bin110011111011000000…
…001110011100101101
312022220100212102202122
4303323000032130231
51403134142413244
641340032002325
74012361352521
oct637300163455
9168810772678
1055750747949
1121709931106
12a97a9903a5
1353462c8670
1429ac3b9d81
1516b46951ee
hexcfb00e72d

55750747949 has 16 divisors (see below), whose sum is σ = 62661268992. Its totient is φ = 49215627648.

The previous prime is 55750747933. The next prime is 55750747951. The reversal of 55750747949 is 94974705755.

It is a cyclic number.

It is not a de Polignac number, because 55750747949 - 24 = 55750747933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55750747891 and 55750747900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55750740949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1990289 + ... + 2018105.

It is an arithmetic number, because the mean of its divisors is an integer number (3916329312).

Almost surely, 255750747949 is an apocalyptic number.

It is an amenable number.

55750747949 is a deficient number, since it is larger than the sum of its proper divisors (6910521043).

55750747949 is a wasteful number, since it uses less digits than its factorization.

55750747949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34556.

The product of its (nonzero) digits is 55566000, while the sum is 62.

The spelling of 55750747949 in words is "fifty-five billion, seven hundred fifty million, seven hundred forty-seven thousand, nine hundred forty-nine".

Divisors: 1 13 23 299 6703 27817 87139 154169 361621 639791 2004197 8317283 186457351 2423945563 4288519073 55750747949