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55252023261 = 3312471732357
BaseRepresentation
bin110011011101010001…
…101111011111011101
312021121121102121002220
4303131101233133131
51401124004221021
641214334335553
73664124306631
oct633521573735
9167547377086
1055252023261
1121483365946
12a85b95a5b9
135296b9bbb6
142962076dc1
1516859cecc6
hexcdd46f7dd

55252023261 has 48 divisors (see below), whose sum is σ = 78224631552. Its totient is φ = 34671649920.

The previous prime is 55252023179. The next prime is 55252023293. The reversal of 55252023261 is 16232025255.

It is not a de Polignac number, because 55252023261 - 223 = 55243634653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55252023361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23440495 + ... + 23442851.

It is an arithmetic number, because the mean of its divisors is an integer number (1629679824).

Almost surely, 255252023261 is an apocalyptic number.

It is an amenable number.

55252023261 is a deficient number, since it is larger than the sum of its proper divisors (22972608291).

55252023261 is a wasteful number, since it uses less digits than its factorization.

55252023261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642 (or 2611 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 55252023261 in words is "fifty-five billion, two hundred fifty-two million, twenty-three thousand, two hundred sixty-one".

Divisors: 1 3 31 47 93 141 173 519 961 1457 2357 2883 4371 5363 7071 8131 16089 24393 45167 73067 110779 135501 166253 219201 252061 332337 407761 498759 756183 1223283 2265077 3434149 6795231 7813891 10302447 12640591 19164767 23441673 37921773 57494301 106458619 319375857 391858321 594107777 1175574963 1782323331 18417341087 55252023261