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55253960 = 2351381349
BaseRepresentation
bin1101001011000…
…1101111001000
310211222012011222
43102301233020
5103121111320
65252141212
71240436156
oct322615710
9124865158
1055253960
112920a133
1216607808
13b5a7968
1474a43d6
154cb6825
hex34b1bc8

55253960 has 16 divisors (see below), whose sum is σ = 124321500. Its totient is φ = 22101568.

The previous prime is 55253941. The next prime is 55253963. The reversal of 55253960 is 6935255.

55253960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 54257956 + 996004 = 7366^2 + 998^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55253960.

It is not an unprimeable number, because it can be changed into a prime (55253963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690635 + ... + 690714.

Almost surely, 255253960 is an apocalyptic number.

It is an amenable number.

55253960 is an abundant number, since it is smaller than the sum of its proper divisors (69067540).

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

55253960 is a wasteful number, since it uses less digits than its factorization.

55253960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381360 (or 1381356 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 55253960 is about 7433.3007473127. The cubic root of 55253960 is about 380.8796794697.

The spelling of 55253960 in words is "fifty-five million, two hundred fifty-three thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1381349 2762698 5525396 6906745 11050792 13813490 27626980 55253960