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55132444213 = 7115943328027
BaseRepresentation
bin110011010110001001…
…100101011000110101
312021022021102100111021
4303112021211120311
51400402401203323
641154423341141
73661143020650
oct632611453065
9167267370437
1055132444213
1121421911390
12a8278b17b1
135278191772
14295022a897
15167a25e05d
hexcd6265635

55132444213 has 32 divisors (see below), whose sum is σ = 70065515520. Its totient is φ = 42133167360.

The previous prime is 55132444207. The next prime is 55132444223. The reversal of 55132444213 is 31244423155.

55132444213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55132444213 - 25 = 55132444181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55132444223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1953106 + ... + 1981132.

It is an arithmetic number, because the mean of its divisors is an integer number (2189547360).

Almost surely, 255132444213 is an apocalyptic number.

It is an amenable number.

55132444213 is a deficient number, since it is larger than the sum of its proper divisors (14933071307).

55132444213 is a wasteful number, since it uses less digits than its factorization.

55132444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537.

The product of its digits is 57600, while the sum is 34.

Adding to 55132444213 its reverse (31244423155), we get a palindrome (86376867368).

The spelling of 55132444213 in words is "fifty-five billion, one hundred thirty-two million, four hundred forty-four thousand, two hundred thirteen".

Divisors: 1 7 11 59 77 413 433 649 3031 4543 4763 25547 28027 33341 178829 196189 281017 308297 1653593 1967119 2158079 11575151 12135691 18189523 84949837 127326661 133492601 716005769 934448207 5012040383 7876063459 55132444213