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55563151 = 749915907
BaseRepresentation
bin1101001111110…
…1001110001111
310212112220022111
43103331032033
5103211010101
65302524451
71243164460
oct323751617
9125486274
1055563151
1129400466
1216736727
13b685607
147544d67
154d28251
hex34fd38f

55563151 has 8 divisors (see below), whose sum is σ = 63632000. Its totient is φ = 47527128.

The previous prime is 55563127. The next prime is 55563161. The reversal of 55563151 is 15136555.

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 55563151 - 25 = 55563119 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 (55563121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4461 + ... + 11446.

It is an arithmetic number, because the mean of its divisors is an integer number (7954000).

Almost surely, 255563151 is an apocalyptic number.

55563151 is a deficient number, since it is larger than the sum of its proper divisors (8068849).

55563151 is a wasteful number, since it uses less digits than its factorization.

55563151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16413.

The product of its digits is 11250, while the sum is 31.

The square root of 55563151 is about 7454.0694254883. The cubic root of 55563151 is about 381.5888026189.

The spelling of 55563151 in words is "fifty-five million, five hundred sixty-three thousand, one hundred fifty-one".

Divisors: 1 7 499 3493 15907 111349 7937593 55563151