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55204465 = 511040893
BaseRepresentation
bin1101001010010…
…1101001110001
310211212200021211
43102211221301
5103113020330
65251120121
71240141651
oct322455161
9124780254
1055204465
1129185a28
12165a3041
13b58b284
147490361
154ca6d2a
hex34a5a71

55204465 has 4 divisors (see below), whose sum is σ = 66245364. Its totient is φ = 44163568.

The previous prime is 55204463. The next prime is 55204483. The reversal of 55204465 is 56440255.

55204465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 28174864 + 27029601 = 5308^2 + 5199^2 .

It is a cyclic number.

It is not a de Polignac number, because 55204465 - 21 = 55204463 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55204463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5520442 + ... + 5520451.

It is an arithmetic number, because the mean of its divisors is an integer number (16561341).

Almost surely, 255204465 is an apocalyptic number.

It is an amenable number.

55204465 is a deficient number, since it is larger than the sum of its proper divisors (11040899).

55204465 is a wasteful number, since it uses less digits than its factorization.

55204465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040898.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 55204465 is about 7429.9707267256. The cubic root of 55204465 is about 380.7659182631.

The spelling of 55204465 in words is "fifty-five million, two hundred four thousand, four hundred sixty-five".

Divisors: 1 5 11040893 55204465