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54022545421 = 134155580417
BaseRepresentation
bin110010010011111111…
…101010000000001101
312011102220221122120121
4302103333222000031
51341114232423141
640452334344541
73621505026265
oct622377520015
9164386848517
1054022545421
1120a02355a59
12a57805b151
13512c256310
142886a727a5
151612ac01d1
hexc93fea00d

54022545421 has 4 divisors (see below), whose sum is σ = 58178125852. Its totient is φ = 49866964992.

The previous prime is 54022545301. The next prime is 54022545427. The reversal of 54022545421 is 12454522045.

54022545421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10178792100 + 43843753321 = 100890^2 + 209389^2 .

It is not a de Polignac number, because 54022545421 - 213 = 54022537229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54022545427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077790196 + ... + 2077790221.

It is an arithmetic number, because the mean of its divisors is an integer number (14544531463).

Almost surely, 254022545421 is an apocalyptic number.

It is an amenable number.

54022545421 is a deficient number, since it is larger than the sum of its proper divisors (4155580431).

54022545421 is a wasteful number, since it uses less digits than its factorization.

54022545421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155580430.

The product of its (nonzero) digits is 64000, while the sum is 34.

The spelling of 54022545421 in words is "fifty-four billion, twenty-two million, five hundred forty-five thousand, four hundred twenty-one".

Divisors: 1 13 4155580417 54022545421