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55430032253 = 97815667113
BaseRepresentation
bin110011100111111000…
…110010101101111101
312022002000101101112112
4303213320302231331
51402010042013003
641244133543405
74001415333401
oct634770625575
9168060341475
1055430032253
1121564898712
12a8ab4a4b65
1352c4a2676b
14297b973101
1516964433d8
hexce7e32b7d

55430032253 has 4 divisors (see below), whose sum is σ = 55435709148. Its totient is φ = 55424355360.

The previous prime is 55430032213. The next prime is 55430032291. The reversal of 55430032253 is 35223003455.

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 20794216804 + 34635815449 = 144202^2 + 186107^2 .

It is a cyclic number.

It is not a de Polignac number, because 55430032253 - 28 = 55430031997 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 (55430032213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2823776 + ... + 2843337.

It is an arithmetic number, because the mean of its divisors is an integer number (13858927287).

Almost surely, 255430032253 is an apocalyptic number.

It is an amenable number.

55430032253 is a deficient number, since it is larger than the sum of its proper divisors (5676895).

55430032253 is an equidigital number, since it uses as much as digits as its factorization.

55430032253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676894.

The product of its (nonzero) digits is 54000, while the sum is 32.

The spelling of 55430032253 in words is "fifty-five billion, four hundred thirty million, thirty-two thousand, two hundred fifty-three".

Divisors: 1 9781 5667113 55430032253