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54212245453 = 512391058027
BaseRepresentation
bin110010011111010011…
…010011011111001101
312011221010220102002201
4302133103103133031
51342011313323303
640523232321501
73626300324512
oct623723233715
9164833812081
1054212245453
1120a9a443443
12a60b6a3291
13515c645362
1428a3d33309
15162459281d
hexc9f4d37cd

54212245453 has 4 divisors (see below), whose sum is σ = 54213354720. Its totient is φ = 54211136188.

The previous prime is 54212245447. The next prime is 54212245487. The reversal of 54212245453 is 35454221245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54212245453 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 (54212245433) 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, 477775 + ... + 580252.

It is an arithmetic number, because the mean of its divisors is an integer number (13553338680).

Almost surely, 254212245453 is an apocalyptic number.

It is an amenable number.

54212245453 is a deficient number, since it is larger than the sum of its proper divisors (1109267).

54212245453 is a wasteful number, since it uses less digits than its factorization.

54212245453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109266.

The product of its digits is 192000, while the sum is 37.

Adding to 54212245453 its reverse (35454221245), we get a palindrome (89666466698).

The spelling of 54212245453 in words is "fifty-four billion, two hundred twelve million, two hundred forty-five thousand, four hundred fifty-three".

Divisors: 1 51239 1058027 54212245453