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56250806533 = 197397719237
BaseRepresentation
bin110100011000110011…
…110011000100000101
312101012012211001011221
4310120303303010011
51410200201302113
641501414000341
74030642652335
oct643063630405
9171165731157
1056250806533
1121946128569
12aa9a3460b1
1353c5aa130c
142a189890c5
1516e352098d
hexd18cf3105

56250806533 has 8 divisors (see below), whose sum is σ = 56678831352. Its totient is φ = 55824221376.

The previous prime is 56250806519. The next prime is 56250806539. The reversal of 56250806533 is 33560805265.

It can be written as a sum of positive squares in 4 ways, for example, as 23925283684 + 32325522849 = 154678^2 + 179793^2 .

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 56250806533 - 213 = 56250798341 is a prime.

It is a super-2 number, since 2×562508065332 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56250806533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56250806539) 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, 281410 + ... + 437827.

It is an arithmetic number, because the mean of its divisors is an integer number (7084853919).

Almost surely, 256250806533 is an apocalyptic number.

It is an amenable number.

56250806533 is a deficient number, since it is larger than the sum of its proper divisors (428024819).

56250806533 is a wasteful number, since it uses less digits than its factorization.

56250806533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719831.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 56250806533 in words is "fifty-six billion, two hundred fifty million, eight hundred six thousand, five hundred thirty-three".

Divisors: 1 197 397 78209 719237 141689689 285537089 56250806533