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55303540453 = 77900505779
BaseRepresentation
bin110011100000010110…
…010000111011100101
312021202012100221102001
4303200112100323211
51401230201243303
641223414445301
73665321223550
oct634026207345
9167665327361
1055303540453
11214aa452537
12a875063831
1352a4768a45
142968c47697
15168a2a931d
hexce0590ee5

55303540453 has 4 divisors (see below), whose sum is σ = 63204046240. Its totient is φ = 47403034668.

The previous prime is 55303540451. The next prime is 55303540469. The reversal of 55303540453 is 35404530355.

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: 35404530355 = 57080906071.

It is a cyclic number.

It is not a de Polignac number, because 55303540453 - 21 = 55303540451 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 (55303540451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3950252883 + ... + 3950252896.

It is an arithmetic number, because the mean of its divisors is an integer number (15801011560).

Almost surely, 255303540453 is an apocalyptic number.

It is an amenable number.

55303540453 is a deficient number, since it is larger than the sum of its proper divisors (7900505787).

55303540453 is an equidigital number, since it uses as much as digits as its factorization.

55303540453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7900505786.

The product of its (nonzero) digits is 270000, while the sum is 37.

The spelling of 55303540453 in words is "fifty-five billion, three hundred three million, five hundred forty thousand, four hundred fifty-three".

Divisors: 1 7 7900505779 55303540453