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55335193 = 401137993
BaseRepresentation
bin1101001100010…
…1100100011001
310212010022121121
43103011210121
5103131211233
65254005241
71241225044
oct323054431
9125108547
1055335193
1129265171
1216646821
13b605924
1474c5c5b
154cd092d
hex34c5919

55335193 has 4 divisors (see below), whose sum is σ = 55473588. Its totient is φ = 55196800.

The previous prime is 55335191. The next prime is 55335197. The reversal of 55335193 is 39153355.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39153355 = 57830671.

It can be written as a sum of positive squares in 2 ways, for example, as 26904969 + 28430224 = 5187^2 + 5332^2 .

It is a cyclic number.

It is not a de Polignac number, because 55335193 - 21 = 55335191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55335191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68596 + ... + 69397.

It is an arithmetic number, because the mean of its divisors is an integer number (13868397).

Almost surely, 255335193 is an apocalyptic number.

It is an amenable number.

55335193 is a deficient number, since it is larger than the sum of its proper divisors (138395).

55335193 is a wasteful number, since it uses less digits than its factorization.

55335193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138394.

The product of its digits is 30375, while the sum is 34.

The square root of 55335193 is about 7438.7628675742. The cubic root of 55335193 is about 381.0662413557.

The spelling of 55335193 in words is "fifty-five million, three hundred thirty-five thousand, one hundred ninety-three".

Divisors: 1 401 137993 55335193