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55712508446 = 2719923172
BaseRepresentation
bin110011111000101110…
…010110101000011110
312022210200220200000202
4303320232112220132
51403044400232241
641332144223502
74011415336220
oct637056265036
9168720820022
1055712508446
112169a293211
12a96a00ab92
13533b3ca23a
1429a72a4410
1516b113ed9b
hexcf8b96a1e

55712508446 has 36 divisors (see below), whose sum is σ = 96293265768. Its totient is φ = 23681862864.

The previous prime is 55712508389. The next prime is 55712508451. The reversal of 55712508446 is 64480521755.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55712508446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 175749080 + ... + 175749396.

It is an arithmetic number, because the mean of its divisors is an integer number (2674812938).

Almost surely, 255712508446 is an apocalyptic number.

55712508446 is a deficient number, since it is larger than the sum of its proper divisors (40580757322).

55712508446 is an frugal number, since it uses more digits than its factorization.

55712508446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 55712508446 in words is "fifty-five billion, seven hundred twelve million, five hundred eight thousand, four hundred forty-six".

Divisors: 1 2 7 14 199 317 398 634 1393 2219 2786 4438 39601 63083 79202 100489 126166 200978 277207 441581 554414 703423 883162 1406846 12553517 19997311 25107034 39994622 87874619 139981177 175749238 279962354 3979464889 7958929778 27856254223 55712508446