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56380811525 = 5217592718297
BaseRepresentation
bin110100100000100011…
…101110100100000101
312101112021102222111122
4310200203232210011
51410431441432100
641522340243325
74034111663543
oct644043564405
9171467388448
1056380811525
1121a02553205
12ab159a0545
1354169bc14c
142a2bd4ad93
1516eeb50985
hexd208ee905

56380811525 has 48 divisors (see below), whose sum is σ = 75566234880. Its totient is φ = 41572915200.

The previous prime is 56380811453. The next prime is 56380811549. The reversal of 56380811525 is 52511808365.

It is a de Polignac number, because none of the positive numbers 2k-56380811525 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6791177 + ... + 6799473.

It is an arithmetic number, because the mean of its divisors is an integer number (1574296560).

Almost surely, 256380811525 is an apocalyptic number.

It is an amenable number.

56380811525 is a deficient number, since it is larger than the sum of its proper divisors (19185423355).

56380811525 is a wasteful number, since it uses less digits than its factorization.

56380811525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8654 (or 8649 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 44.

The spelling of 56380811525 in words is "fifty-six billion, three hundred eighty million, eight hundred eleven thousand, five hundred twenty-five".

Divisors: 1 5 17 25 59 85 271 295 425 1003 1355 1475 4607 5015 6775 8297 15989 23035 25075 41485 79945 115175 141049 207425 271813 399725 489523 705245 1359065 2248487 2447615 3526225 6795325 8321891 11242435 12238075 38224279 41609455 56212175 132660733 191121395 208047275 663303665 955606975 2255232461 3316518325 11276162305 56380811525