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55050053 = 412713339
BaseRepresentation
bin1101000111111…
…1111101000101
310211120211110212
43101333331011
5103043100203
65243525205
71235626532
oct321777505
9124524425
1055050053
112908aa13
1216529805
13b535bc6
14744dd89
154c761d8
hex347ff45

55050053 has 4 divisors (see below), whose sum is σ = 55067520. Its totient is φ = 55032588.

The previous prime is 55050041. The next prime is 55050067. The reversal of 55050053 is 35005055.

It is a happy number.

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: 35005055 = 57001011.

It is a cyclic number.

It is not a de Polignac number, because 55050053 - 212 = 55045957 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 (55050013) 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, 2543 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (13766880).

Almost surely, 255050053 is an apocalyptic number.

It is an amenable number.

55050053 is a deficient number, since it is larger than the sum of its proper divisors (17467).

55050053 is a wasteful number, since it uses less digits than its factorization.

55050053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17466.

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 55050053 is about 7419.5722922551. The cubic root of 55050053 is about 380.4105742373.

The spelling of 55050053 in words is "fifty-five million, fifty thousand, fifty-three".

Divisors: 1 4127 13339 55050053