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55550120101 = 743918076837
BaseRepresentation
bin110011101111000010…
…111001000010100101
312022101101100111002121
4303233002321002211
51402231312320401
641304103505541
74004404141630
oct635702710245
9168341314077
1055550120101
112161665a473
12a9237582b1
135313881668
14298d8b2c17
1516a1c64ca1
hexcef0b90a5

55550120101 has 8 divisors (see below), whose sum is σ = 63630469760. Its totient is φ = 47505925008.

The previous prime is 55550120033. The next prime is 55550120141. The reversal of 55550120101 is 10102105555.

55550120101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55550120101 - 27 = 55550119973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550120141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9035346 + ... + 9041491.

It is an arithmetic number, because the mean of its divisors is an integer number (7953808720).

Almost surely, 255550120101 is an apocalyptic number.

It is an amenable number.

55550120101 is a deficient number, since it is larger than the sum of its proper divisors (8080349659).

55550120101 is a wasteful number, since it uses less digits than its factorization.

55550120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18077283.

The product of its (nonzero) digits is 1250, while the sum is 25.

Adding to 55550120101 its reverse (10102105555), we get a palindrome (65652225656).

The spelling of 55550120101 in words is "fifty-five billion, five hundred fifty million, one hundred twenty thousand, one hundred one".

Divisors: 1 7 439 3073 18076837 126537859 7935731443 55550120101