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55913790172453 = 71787518171443
BaseRepresentation
bin11001011011010011100011…
…00110011110110100100101
321022222022021011200211002021
430231221301212132310211
524312042420241004303
6314530235100343141
714530431562454233
oct1455516146366445
9238868234624067
1055913790172453
11168a79a5979084
126330573244ab1
1325278562669a5
14db4355a2d953
1566e6a5394ebd
hex32da7199ed25

55913790172453 has 4 divisors (see below), whose sum is σ = 56701308343968. Its totient is φ = 55126272000940.

The previous prime is 55913790172447. The next prime is 55913790172489. The reversal of 55913790172453 is 35427109731955.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55913790172453 - 25 = 55913790172421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55913790172391 and 55913790172400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55913790172553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393759085651 + ... + 393759085792.

It is an arithmetic number, because the mean of its divisors is an integer number (14175327085992).

Almost surely, 255913790172453 is an apocalyptic number.

It is an amenable number.

55913790172453 is a deficient number, since it is larger than the sum of its proper divisors (787518171515).

55913790172453 is an equidigital number, since it uses as much as digits as its factorization.

55913790172453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787518171514.

The product of its (nonzero) digits is 35721000, while the sum is 61.

The spelling of 55913790172453 in words is "fifty-five trillion, nine hundred thirteen billion, seven hundred ninety million, one hundred seventy-two thousand, four hundred fifty-three".

Divisors: 1 71 787518171443 55913790172453