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54520003553 = 75737199261
BaseRepresentation
bin110010110001101001…
…010011101111100001
312012201121000010211212
4302301221103233201
51343124110103203
641013544515505
73640025245451
oct626151235741
9165647003755
1054520003553
1121138136684
12a69677bb95
1351ab32b442
1428d2b65d61
1516415d51d8
hexcb1a53be1

54520003553 has 4 divisors (see below), whose sum is σ = 54527210388. Its totient is φ = 54512796720.

The previous prime is 54520003547. The next prime is 54520003627. The reversal of 54520003553 is 35530002545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52090302289 + 2429701264 = 228233^2 + 49292^2 .

It is a cyclic number.

It is not a de Polignac number, because 54520003553 - 226 = 54452894689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54520003543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3592058 + ... + 3607203.

It is an arithmetic number, because the mean of its divisors is an integer number (13631802597).

Almost surely, 254520003553 is an apocalyptic number.

It is an amenable number.

54520003553 is a deficient number, since it is larger than the sum of its proper divisors (7206835).

54520003553 is an equidigital number, since it uses as much as digits as its factorization.

54520003553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7206834.

The product of its (nonzero) digits is 45000, while the sum is 32.

The spelling of 54520003553 in words is "fifty-four billion, five hundred twenty million, three thousand, five hundred fifty-three".

Divisors: 1 7573 7199261 54520003553