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55132501 = 831036449
BaseRepresentation
bin1101001001010…
…0000101010101
310211202000120111
43102110011111
5103103220001
65245403021
71236422104
oct322240525
9124660514
1055132501
1129136956
1216569471
13b5645a8
14747203b
154c90851
hex3494155

55132501 has 8 divisors (see below), whose sum is σ = 56347200. Its totient is φ = 53931072.

The previous prime is 55132489. The next prime is 55132507. The reversal of 55132501 is 10523155.

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 55132501 - 213 = 55124309 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 (55132507) 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 7 ways as a sum of consecutive naturals, for example, 5325 + ... + 11773.

It is an arithmetic number, because the mean of its divisors is an integer number (7043400).

Almost surely, 255132501 is an apocalyptic number.

It is an amenable number.

55132501 is a deficient number, since it is larger than the sum of its proper divisors (1214699).

55132501 is a wasteful number, since it uses less digits than its factorization.

55132501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55132501 is about 7425.1263288917. The cubic root of 55132501 is about 380.6003920754.

Adding to 55132501 its reverse (10523155), we get a palindrome (65655656).

The spelling of 55132501 in words is "fifty-five million, one hundred thirty-two thousand, five hundred one".

Divisors: 1 83 103 6449 8549 535267 664247 55132501