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53551012225 = 525936305771
BaseRepresentation
bin110001110111111000…
…111001100110000001
312010020001200021122011
4301313320321212001
51334133024342400
640333452012521
73604021044034
oct616770714601
9163201607564
1053551012225
11207901720a7
12a466161141
13508565a3a9
1428401ab01b
1515d64cb8ba
hexc77e39981

53551012225 has 12 divisors (see below), whose sum is σ = 67528735920. Its totient is φ = 42114693200.

The previous prime is 53551012223. The next prime is 53551012253. The reversal of 53551012225 is 52221015535.

It is not a de Polignac number, because 53551012225 - 21 = 53551012223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53551012223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18151411 + ... + 18154360.

It is an arithmetic number, because the mean of its divisors is an integer number (5627394660).

Almost surely, 253551012225 is an apocalyptic number.

It is an amenable number.

53551012225 is a deficient number, since it is larger than the sum of its proper divisors (13977723695).

53551012225 is a wasteful number, since it uses less digits than its factorization.

53551012225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36305840 (or 36305835 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The spelling of 53551012225 in words is "fifty-three billion, five hundred fifty-one million, twelve thousand, two hundred twenty-five".

Divisors: 1 5 25 59 295 1475 36305771 181528855 907644275 2142040489 10710202445 53551012225