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53004220253 = 173793822013
BaseRepresentation
bin110001010111010011…
…000011011101011101
312001210221210101001122
4301113103003131131
51332023040022003
640203320220325
73554331303245
oct612723033535
9161727711048
1053004220253
112052a556206
12a33300a6a5
134cc92a114a
1427cb714b25
1515a34be238
hexc574c375d

53004220253 has 8 divisors (see below), whose sum is σ = 56136980088. Its totient is φ = 49873112064.

The previous prime is 53004220211. The next prime is 53004220273. The reversal of 53004220253 is 35202240035.

It can be written as a sum of positive squares in 4 ways, for example, as 9261752644 + 43742467609 = 96238^2 + 209147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53004220253 - 220 = 53003171677 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 (53004220273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346526 + ... + 475487.

It is an arithmetic number, because the mean of its divisors is an integer number (7017122511).

Almost surely, 253004220253 is an apocalyptic number.

It is an amenable number.

53004220253 is a deficient number, since it is larger than the sum of its proper divisors (3132759835).

53004220253 is a wasteful number, since it uses less digits than its factorization.

53004220253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825823.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 53004220253 its reverse (35202240035), we get a palindrome (88206460288).

The spelling of 53004220253 in words is "fifty-three billion, four million, two hundred twenty thousand, two hundred fifty-three".

Divisors: 1 17 3793 64481 822013 13974221 3117895309 53004220253