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55261177465 = 5132116735987
BaseRepresentation
bin110011011101110100…
…101010011001111001
312021122020122200022111
4303131310222121321
51401133330134330
641215302452321
73664265154364
oct633564523171
9167566580274
1055261177465
11214885485aa
12a862a340a1
135298a557a0
14296337b0db
1516866dc32a
hexcddd2a679

55261177465 has 32 divisors (see below), whose sum is σ = 71871520896. Its totient is φ = 40547727360.

The previous prime is 55261177403. The next prime is 55261177481. The reversal of 55261177465 is 56477116255.

It is a de Polignac number, because none of the positive numbers 2k-55261177465 is a prime.

It is a super-3 number, since 3×552611774653 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9227202 + ... + 9233188.

It is an arithmetic number, because the mean of its divisors is an integer number (2245985028).

Almost surely, 255261177465 is an apocalyptic number.

It is an amenable number.

55261177465 is a deficient number, since it is larger than the sum of its proper divisors (16610343431).

55261177465 is a wasteful number, since it uses less digits than its factorization.

55261177465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889.

The product of its digits is 1764000, while the sum is 49.

The spelling of 55261177465 in words is "fifty-five billion, two hundred sixty-one million, one hundred seventy-seven thousand, four hundred sixty-five".

Divisors: 1 5 13 65 211 673 1055 2743 3365 5987 8749 13715 29935 43745 77831 142003 389155 710015 1263257 1846039 4029251 6316285 9230195 16422341 20146255 52380263 82111705 261901315 850171961 4250859805 11052235493 55261177465