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55324479 = 3723731009
BaseRepresentation
bin1101001100001…
…0111100111111
310212002202220210
43103002330333
5103130340404
65253443503
71241151600
oct323027477
9125082823
1055324479
1129258111
1216640593
13b600aa2
1474c1da7
154ccc689
hex34c2f3f

55324479 has 24 divisors (see below), whose sum is σ = 86124720. Its totient is φ = 31497984.

The previous prime is 55324463. The next prime is 55324481. The reversal of 55324479 is 97442355.

It is not a de Polignac number, because 55324479 - 24 = 55324463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55324459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54327 + ... + 55335.

It is an arithmetic number, because the mean of its divisors is an integer number (3588530).

Almost surely, 255324479 is an apocalyptic number.

55324479 is a deficient number, since it is larger than the sum of its proper divisors (30800241).

55324479 is a wasteful number, since it uses less digits than its factorization.

55324479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399 (or 1392 counting only the distinct ones).

The product of its digits is 151200, while the sum is 39.

The square root of 55324479 is about 7438.0426860835. The cubic root of 55324479 is about 381.0416457532.

It can be divided in two parts, 5532 and 4479, that added together give a triangular number (10011 = T141).

The spelling of 55324479 in words is "fifty-five million, three hundred twenty-four thousand, four hundred seventy-nine".

Divisors: 1 3 7 21 49 147 373 1009 1119 2611 3027 7063 7833 18277 21189 49441 54831 148323 376357 1129071 2634499 7903497 18441493 55324479