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54042221563 = 115983269987
BaseRepresentation
bin110010010101001010…
…101101101111111011
312011111021222022011121
4302111022231233323
51341134302042223
640454320210111
73622134206161
oct622512555773
9164437868147
1054042221563
1120a12474a30
12a582769937
1351333551c5
142889515231
1516146aa15d
hexc952adbfb

54042221563 has 8 divisors (see below), whose sum is σ = 59954391360. Its totient is φ = 48296591880.

The previous prime is 54042221543. The next prime is 54042221567. The reversal of 54042221563 is 36512224045.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54042221563 is a prime.

It is a super-2 number, since 2×540422215632 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54042221567) 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, 41634345 + ... + 41635642.

It is an arithmetic number, because the mean of its divisors is an integer number (7494298920).

Almost surely, 254042221563 is an apocalyptic number.

54042221563 is a deficient number, since it is larger than the sum of its proper divisors (5912169797).

54042221563 is a wasteful number, since it uses less digits than its factorization.

54042221563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83270057.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 54042221563 in words is "fifty-four billion, forty-two million, two hundred twenty-one thousand, five hundred sixty-three".

Divisors: 1 11 59 649 83269987 915969857 4912929233 54042221563