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55137137528 = 23112112969471
BaseRepresentation
bin110011010110011011…
…011111001101111000
312021022121020210111202
4303112123133031320
51400410101400103
641155112113332
73661230636044
oct632633371570
9167277223452
1055137137528
1121424527560
12a829395848
135279145a85
142950acd024
15167a889988
hexcd66df378

55137137528 has 32 divisors (see below), whose sum is σ = 113315051520. Its totient is φ = 24943548000.

The previous prime is 55137137519. The next prime is 55137137537. The reversal of 55137137528 is 82573173155.

It is an interprime number because it is at equal distance from previous prime (55137137519) and next prime (55137137537).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1466168 + ... + 1503303.

It is an arithmetic number, because the mean of its divisors is an integer number (3541095360).

Almost surely, 255137137528 is an apocalyptic number.

It is an amenable number.

55137137528 is an abundant number, since it is smaller than the sum of its proper divisors (58177913992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55137137528 is a wasteful number, since it uses less digits than its factorization.

55137137528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969699 (or 2969695 counting only the distinct ones).

The product of its digits is 882000, while the sum is 47.

The spelling of 55137137528 in words is "fifty-five billion, one hundred thirty-seven million, one hundred thirty-seven thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 88 211 422 844 1688 2321 4642 9284 18568 2969471 5938942 11877884 23755768 32664181 65328362 130656724 261313448 626558381 1253116762 2506233524 5012467048 6892142191 13784284382 27568568764 55137137528