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54102215225 = 524152782649
BaseRepresentation
bin110010011000101111…
…100100101000111001
312011122110212022000002
4302120233210220321
51341300131341400
640504302122345
73623463145622
oct623057445071
9164573768002
1054102215225
1120a43321073
12a59a8803b5
1351428cc306
142893490a49
151619aaaed5
hexc98be4a39

54102215225 has 12 divisors (see below), whose sum is σ = 68723010300. Its totient is φ = 42226118400.

The previous prime is 54102215213. The next prime is 54102215231. The reversal of 54102215225 is 52251220145.

It is a happy number.

54102215225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 24123370489 + 29978844736 = 155317^2 + 173144^2 .

It is not a de Polignac number, because 54102215225 - 220 = 54101166649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26390300 + ... + 26392349.

It is an arithmetic number, because the mean of its divisors is an integer number (5726917525).

Almost surely, 254102215225 is an apocalyptic number.

It is an amenable number.

54102215225 is a deficient number, since it is larger than the sum of its proper divisors (14620795075).

54102215225 is a wasteful number, since it uses less digits than its factorization.

54102215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52782700 (or 52782695 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 54102215225 in words is "fifty-four billion, one hundred two million, two hundred fifteen thousand, two hundred twenty-five".

Divisors: 1 5 25 41 205 1025 52782649 263913245 1319566225 2164088609 10820443045 54102215225