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53540222453 = 58791209919
BaseRepresentation
bin110001110111001111…
…101111010111110101
312010012022101002211222
4301313033233113311
51334122244104303
640332424440125
73603530245004
oct616717572765
9163168332758
1053540222453
1120785072633
12a462619045
135083350203
14283c99cc3b
1515d5599938
hexc773ef5f5

53540222453 has 4 divisors (see below), whose sum is σ = 53631432960. Its totient is φ = 53449011948.

The previous prime is 53540222387. The next prime is 53540222459. The reversal of 53540222453 is 35422204535.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35422204535 = 57084440907.

It is a cyclic number.

It is not a de Polignac number, because 53540222453 - 222 = 53536028149 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 (53540222459) 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, 45604373 + ... + 45605546.

It is an arithmetic number, because the mean of its divisors is an integer number (13407858240).

Almost surely, 253540222453 is an apocalyptic number.

It is an amenable number.

53540222453 is a deficient number, since it is larger than the sum of its proper divisors (91210507).

53540222453 is an equidigital number, since it uses as much as digits as its factorization.

53540222453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91210506.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 53540222453 its reverse (35422204535), we get a palindrome (88962426988).

The spelling of 53540222453 in words is "fifty-three billion, five hundred forty million, two hundred twenty-two thousand, four hundred fifty-three".

Divisors: 1 587 91209919 53540222453