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55055550053 = 738920218711
BaseRepresentation
bin110011010001100100…
…010000011001100101
312021002220201201112102
4303101210100121211
51400223210100203
641143035301445
73656220311510
oct632144203145
9167086651472
1055055550053
1121392471699
12a805baa885
13526527ac6a
142943d31d77
151673620888
hexcd1910665

55055550053 has 8 divisors (see below), whose sum is σ = 63082381440. Its totient is φ = 47069156880.

The previous prime is 55055550049. The next prime is 55055550059. The reversal of 55055550053 is 35005555055.

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 55055550053 - 22 = 55055550049 is a prime.

It is a super-2 number, since 2×550555500532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55055549989 and 55055550016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055550059) 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, 10106633 + ... + 10112078.

It is an arithmetic number, because the mean of its divisors is an integer number (7885297680).

Almost surely, 255055550053 is an apocalyptic number.

It is an amenable number.

55055550053 is a deficient number, since it is larger than the sum of its proper divisors (8026831387).

55055550053 is a wasteful number, since it uses less digits than its factorization.

55055550053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20219107.

The product of its (nonzero) digits is 234375, while the sum is 38.

The spelling of 55055550053 in words is "fifty-five billion, fifty-five million, five hundred fifty thousand, fifty-three".

Divisors: 1 7 389 2723 20218711 141530977 7865078579 55055550053