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55135510 = 255513551
BaseRepresentation
bin1101001001010…
…0110100010110
310211202011200221
43102110310112
5103103314020
65245424554
71236433633
oct322246426
9124664627
1055135510
1129139141
121656b15a
13b565a81
14747318a
154c916aa
hex3494d16

55135510 has 8 divisors (see below), whose sum is σ = 99243936. Its totient is φ = 22054200.

The previous prime is 55135499. The next prime is 55135517. The reversal of 55135510 is 1553155.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55135517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2756766 + ... + 2756785.

It is an arithmetic number, because the mean of its divisors is an integer number (12405492).

Almost surely, 255135510 is an apocalyptic number.

55135510 is a deficient number, since it is larger than the sum of its proper divisors (44108426).

55135510 is a wasteful number, since it uses less digits than its factorization.

55135510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5513558.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 55135510 is about 7425.3289489423. The cubic root of 55135510 is about 380.6073160357.

Adding to 55135510 its reverse (1553155), we get a palindrome (56688665).

The spelling of 55135510 in words is "fifty-five million, one hundred thirty-five thousand, five hundred ten".

Divisors: 1 2 5 10 5513551 11027102 27567755 55135510