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55550061115 = 5181264723189
BaseRepresentation
bin110011101111000010…
…101010101000111011
312022101101020111011221
4303233002222220323
51402231303423430
641304102332511
74004403504643
oct635702525073
9168341214157
1055550061115
112161661a11a
12a92372a137
135313860863
14298d899523
1516a1c5257a
hexcef0aaa3b

55550061115 has 16 divisors (see below), whose sum is σ = 67056575040. Its totient is φ = 44175922560.

The previous prime is 55550061107. The next prime is 55550061157. The reversal of 55550061115 is 51116005555.

It is not a de Polignac number, because 55550061115 - 23 = 55550061107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2383941 + ... + 2407129.

It is an arithmetic number, because the mean of its divisors is an integer number (4191035940).

Almost surely, 255550061115 is an apocalyptic number.

55550061115 is a deficient number, since it is larger than the sum of its proper divisors (11506513925).

55550061115 is a wasteful number, since it uses less digits than its factorization.

55550061115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26022.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 55550061115 in words is "fifty-five billion, five hundred fifty million, sixty-one thousand, one hundred fifteen".

Divisors: 1 5 181 905 2647 13235 23189 115945 479107 2395535 4197209 20986045 61381283 306906415 11110012223 55550061115