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53531247125 = 53577742201
BaseRepresentation
bin110001110110101101…
…100000001000010101
312010011200111010000102
4301312231200020111
51334112444402000
640331504223445
73603361043606
oct616655401025
9163150433012
1053531247125
112077aaa2304
12a45b60ab85
135081529b75
14283b703dad
1515d48c53d5
hexc76b60215

53531247125 has 16 divisors (see below), whose sum is σ = 66922869936. Its totient is φ = 42750720000.

The previous prime is 53531247101. The next prime is 53531247137. The reversal of 53531247125 is 52174213535.

It can be written as a sum of positive squares in 8 ways, for example, as 333208516 + 53198038609 = 18254^2 + 230647^2 .

It is not a de Polignac number, because 53531247125 - 226 = 53464138261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298976 + ... + 443225.

It is an arithmetic number, because the mean of its divisors is an integer number (4182679371).

Almost surely, 253531247125 is an apocalyptic number.

It is an amenable number.

53531247125 is a deficient number, since it is larger than the sum of its proper divisors (13391622811).

53531247125 is an equidigital number, since it uses as much as digits as its factorization.

53531247125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742793 (or 742783 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The spelling of 53531247125 in words is "fifty-three billion, five hundred thirty-one million, two hundred forty-seven thousand, one hundred twenty-five".

Divisors: 1 5 25 125 577 2885 14425 72125 742201 3711005 18555025 92775125 428249977 2141249885 10706249425 53531247125