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55338570331 = 1123661330907
BaseRepresentation
bin110011100010011011…
…111001001001011011
312021211122021122100221
4303202123321021123
51401313133222311
641231105340511
73666225041512
oct634233711133
9167748248327
1055338570331
11215181a8a50
12a884937737
1352abab2295
14296d765679
15168d3c8671
hexce26f925b

55338570331 has 16 divisors (see below), whose sum is σ = 63089595648. Its totient is φ = 48047551200.

The previous prime is 55338570299. The next prime is 55338570341. The reversal of 55338570331 is 13307583355.

It is not a de Polignac number, because 55338570331 - 25 = 55338570299 is a prime.

It is a super-2 number, since 2×553385703312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55338570341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1780 + ... + 332686.

It is an arithmetic number, because the mean of its divisors is an integer number (3943099728).

Almost surely, 255338570331 is an apocalyptic number.

55338570331 is a deficient number, since it is larger than the sum of its proper divisors (7751025317).

55338570331 is a wasteful number, since it uses less digits than its factorization.

55338570331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331602.

The product of its (nonzero) digits is 567000, while the sum is 43.

The spelling of 55338570331 in words is "fifty-five billion, three hundred thirty-eight million, five hundred seventy thousand, three hundred thirty-one".

Divisors: 1 11 23 253 661 7271 15203 167233 330907 3639977 7610861 83719471 218729527 2406024797 5030779121 55338570331