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54512257 = 294993767
BaseRepresentation
bin1100111111110…
…0101010000001
310210120111202111
43033330222001
5102423343012
65224215321
71231226602
oct317745201
9123514674
1054512257
1128852958
121630a541
13b3a8197
14734dda9
154bbbba7
hex33fca81

54512257 has 8 divisors (see below), whose sum is σ = 56520000. Its totient is φ = 52513104.

The previous prime is 54512243. The next prime is 54512267. The reversal of 54512257 is 75221545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54512257 - 215 = 54479489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54512207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12588 + ... + 16354.

It is an arithmetic number, because the mean of its divisors is an integer number (7065000).

Almost surely, 254512257 is an apocalyptic number.

It is an amenable number.

54512257 is a deficient number, since it is larger than the sum of its proper divisors (2007743).

54512257 is a wasteful number, since it uses less digits than its factorization.

54512257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295.

The product of its digits is 14000, while the sum is 31.

The square root of 54512257 is about 7383.2416322372. The cubic root of 54512257 is about 379.1677469089.

The spelling of 54512257 in words is "fifty-four million, five hundred twelve thousand, two hundred fifty-seven".

Divisors: 1 29 499 3767 14471 109243 1879733 54512257