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53620753557 = 372364767031
BaseRepresentation
bin110001111100000010…
…111100010010010101
312010101220220111202110
4301330002330102111
51334303403103212
640344422501233
73605525612400
oct617402742225
9163356814673
1053620753557
1120816576868
12a485594819
135096c38257
142849562d37
1515dc6a5a3c
hexc7c0bc495

53620753557 has 12 divisors (see below), whose sum is σ = 83166883296. Its totient is φ = 30640430520.

The previous prime is 53620753523. The next prime is 53620753561. The reversal of 53620753557 is 75535702635.

It is not a de Polignac number, because 53620753557 - 28 = 53620753301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53620758557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182383369 + ... + 182383662.

It is an arithmetic number, because the mean of its divisors is an integer number (6930573608).

Almost surely, 253620753557 is an apocalyptic number.

It is an amenable number.

53620753557 is a deficient number, since it is larger than the sum of its proper divisors (29546129739).

53620753557 is a wasteful number, since it uses less digits than its factorization.

53620753557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364767048 (or 364767041 counting only the distinct ones).

The product of its (nonzero) digits is 3307500, while the sum is 48.

The spelling of 53620753557 in words is "fifty-three billion, six hundred twenty million, seven hundred fifty-three thousand, five hundred fifty-seven".

Divisors: 1 3 7 21 49 147 364767031 1094301093 2553369217 7660107651 17873584519 53620753557