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55252301 = 134250177
BaseRepresentation
bin1101001011000…
…1010101001101
310211222002220112
43102301111031
5103121033201
65252125405
71240431266
oct322612515
9124862815
1055252301
1129208965
1216606865
13b5a6c90
1474a396d
154cb60bb
hex34b154d

55252301 has 4 divisors (see below), whose sum is σ = 59502492. Its totient is φ = 51002112.

The previous prime is 55252207. The next prime is 55252319. The reversal of 55252301 is 10325255.

55252301 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 17859076 + 37393225 = 4226^2 + 6115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55252301 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 (55252381) 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, 2125076 + ... + 2125101.

It is an arithmetic number, because the mean of its divisors is an integer number (14875623).

Almost surely, 255252301 is an apocalyptic number.

It is an amenable number.

55252301 is a deficient number, since it is larger than the sum of its proper divisors (4250191).

55252301 is a wasteful number, since it uses less digits than its factorization.

55252301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250190.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 55252301 is about 7433.1891540576. The cubic root of 55252301 is about 380.8758674611.

Adding to 55252301 its reverse (10325255), we get a palindrome (65577556).

The spelling of 55252301 in words is "fifty-five million, two hundred fifty-two thousand, three hundred one".

Divisors: 1 13 4250177 55252301