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53553252031 = 201726550943
BaseRepresentation
bin110001111000000001…
…011100011010111111
312010020012220002001221
4301320001130122333
51334134113031111
640334012014211
73604046063056
oct617001343277
9163205802057
1053553252031
1120791461984
12a466a61367
135085c62a16
1428405d139d
1515d67c0371
hexc7805c6bf

53553252031 has 4 divisors (see below), whose sum is σ = 53579804992. Its totient is φ = 53526699072.

The previous prime is 53553252013. The next prime is 53553252061. The reversal of 53553252031 is 13025235535.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53553252031 - 27 = 53553251903 is a prime.

It is a super-2 number, since 2×535532520312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53553252061) 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 3 ways as a sum of consecutive naturals, for example, 13273455 + ... + 13277488.

It is an arithmetic number, because the mean of its divisors is an integer number (13394951248).

Almost surely, 253553252031 is an apocalyptic number.

53553252031 is a deficient number, since it is larger than the sum of its proper divisors (26552961).

53553252031 is a wasteful number, since it uses less digits than its factorization.

53553252031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26552960.

The product of its (nonzero) digits is 67500, while the sum is 34.

Adding to 53553252031 its reverse (13025235535), we get a palindrome (66578487566).

The spelling of 53553252031 in words is "fifty-three billion, five hundred fifty-three million, two hundred fifty-two thousand, thirty-one".

Divisors: 1 2017 26550943 53553252031