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55610413 = 281919727
BaseRepresentation
bin1101010000100…
…0110000101101
310212122022010221
43110020300231
5103214013123
65303531341
71243452325
oct324106055
9125568127
1055610413
1129432a21
1216759b51
13b6a0c91
147558285
154d3725d
hex3508c2d

55610413 has 4 divisors (see below), whose sum is σ = 55632960. Its totient is φ = 55587868.

The previous prime is 55610407. The next prime is 55610453. The reversal of 55610413 is 31401655.

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: 31401655 = 56280331.

It is a cyclic number.

It is not a de Polignac number, because 55610413 - 25 = 55610381 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 (55610453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7045 + ... + 12682.

It is an arithmetic number, because the mean of its divisors is an integer number (13908240).

Almost surely, 255610413 is an apocalyptic number.

It is an amenable number.

55610413 is a deficient number, since it is larger than the sum of its proper divisors (22547).

55610413 is a wasteful number, since it uses less digits than its factorization.

55610413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22546.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55610413 is about 7457.2389662663. The cubic root of 55610413 is about 381.6969650650.

The spelling of 55610413 in words is "fifty-five million, six hundred ten thousand, four hundred thirteen".

Divisors: 1 2819 19727 55610413