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55127645 = 519580291
BaseRepresentation
bin1101001001001…
…0111001011101
310211201202220122
43102102321131
5103103041040
65245324325
71236401666
oct322227135
9124652818
1055127645
1129133241
12165666a5
13b562311
14747036d
154c8e1b5
hex3492e5d

55127645 has 8 divisors (see below), whose sum is σ = 69635040. Its totient is φ = 41780880.

The previous prime is 55127621. The next prime is 55127647. The reversal of 55127645 is 54672155.

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

It is not a de Polignac number, because 55127645 - 26 = 55127581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55127647) 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, 290051 + ... + 290240.

It is an arithmetic number, because the mean of its divisors is an integer number (8704380).

Almost surely, 255127645 is an apocalyptic number.

It is an amenable number.

55127645 is a deficient number, since it is larger than the sum of its proper divisors (14507395).

55127645 is a wasteful number, since it uses less digits than its factorization.

55127645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580315.

The product of its digits is 42000, while the sum is 35.

The square root of 55127645 is about 7424.7993238875. The cubic root of 55127645 is about 380.5892174824.

The spelling of 55127645 in words is "fifty-five million, one hundred twenty-seven thousand, six hundred forty-five".

Divisors: 1 5 19 95 580291 2901455 11025529 55127645