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55560553 = 713072549
BaseRepresentation
bin1101001111110…
…0100101101001
310212112202202021
43103330211221
5103210414203
65302504441
71243154056
oct323744551
9125482667
1055560553
11293a9514
1216735121
13b684389
14754402d
154d275bd
hex34fc969

55560553 has 8 divisors (see below), whose sum is σ = 56548800. Its totient is φ = 54578160.

The previous prime is 55560551. The next prime is 55560577. The reversal of 55560553 is 35506555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55560553 - 21 = 55560551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55560551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20523 + ... + 23071.

It is an arithmetic number, because the mean of its divisors is an integer number (7068600).

Almost surely, 255560553 is an apocalyptic number.

It is an amenable number.

55560553 is a deficient number, since it is larger than the sum of its proper divisors (988247).

55560553 is a wasteful number, since it uses less digits than its factorization.

55560553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927.

The product of its (nonzero) digits is 56250, while the sum is 34.

The square root of 55560553 is about 7453.8951562254. The cubic root of 55560553 is about 381.5828551331.

The spelling of 55560553 in words is "fifty-five million, five hundred sixty thousand, five hundred fifty-three".

Divisors: 1 71 307 2549 21797 180979 782543 55560553