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55055000001 = 3193726104789
BaseRepresentation
bin110011010001100010…
…001010000111000001
312021002212200210000010
4303101202022013001
51400223040000001
641143015415133
73656212531041
oct632142120701
9167085623003
1055055000001
1121392126401
12a8059844a9
1352651177a1
142943c2b721
1516735628d6
hexcd188a1c1

55055000001 has 16 divisors (see below), whose sum is σ = 79358561600. Its totient is φ = 33831805248.

The previous prime is 55054999981. The next prime is 55055000003. The reversal of 55055000001 is 10000055055.

It is not a de Polignac number, because 55055000001 - 213 = 55054991809 is a prime.

It is a super-2 number, since 2×550550000012 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55055000003) 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, 13050286 + ... + 13054503.

It is an arithmetic number, because the mean of its divisors is an integer number (4959910100).

Almost surely, 255055000001 is an apocalyptic number.

It is an amenable number.

55055000001 is a deficient number, since it is larger than the sum of its proper divisors (24303561599).

55055000001 is a wasteful number, since it uses less digits than its factorization.

55055000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26104848.

The product of its (nonzero) digits is 625, while the sum is 21.

Adding to 55055000001 its reverse (10000055055), we get a palindrome (65055055056).

The spelling of 55055000001 in words is "fifty-five billion, fifty-five million, one", and thus it is an aban number and an uban number.

Divisors: 1 3 19 37 57 111 703 2109 26104789 78314367 495990991 965877193 1487972973 2897631579 18351666667 55055000001