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55257454 = 2723712417
BaseRepresentation
bin1101001011001…
…0100101101110
310211222100222101
43102302211232
5103121214304
65252205314
71240452310
oct322624556
9124870871
1055257454
112921181a
121660983a
13b5a9425
1474a57b0
154cb78a4
hex34b296e

55257454 has 32 divisors (see below), whose sum is σ = 100279296. Its totient is φ = 22323840.

The previous prime is 55257437. The next prime is 55257457. The reversal of 55257454 is 45475255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55257457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21654 + ... + 24070.

It is an arithmetic number, because the mean of its divisors is an integer number (3133728).

Almost surely, 255257454 is an apocalyptic number.

55257454 is a deficient number, since it is larger than the sum of its proper divisors (45021842).

55257454 is a wasteful number, since it uses less digits than its factorization.

55257454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520.

The product of its digits is 140000, while the sum is 37.

The square root of 55257454 is about 7433.5357670492. The cubic root of 55257454 is about 380.8877076457.

The spelling of 55257454 in words is "fifty-five million, two hundred fifty-seven thousand, four hundred fifty-four".

Divisors: 1 2 7 14 23 46 71 142 161 322 497 994 1633 2417 3266 4834 11431 16919 22862 33838 55591 111182 171607 343214 389137 778274 1201249 2402498 3946961 7893922 27628727 55257454