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56682587431 is a prime number
BaseRepresentation
bin110100110010100010…
…111010010100100111
312102022022021210020001
4310302202322110213
51412041220244211
642012320322131
74044435020641
oct646242722447
9172268253201
1056682587431
112204792a988
12ab9aa73347
13546438c382
142a5a063891
15171b3b0ac1
hexd328ba527

56682587431 has 2 divisors, whose sum is σ = 56682587432. Its totient is φ = 56682587430.

The previous prime is 56682587419. The next prime is 56682587441. The reversal of 56682587431 is 13478528665.

It is a happy number.

56682587431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56682587431 is a prime.

It is a super-2 number, since 2×566825874312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56682587411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28341293715 + 28341293716.

It is an arithmetic number, because the mean of its divisors is an integer number (28341293716).

Almost surely, 256682587431 is an apocalyptic number.

56682587431 is a deficient number, since it is larger than the sum of its proper divisors (1).

56682587431 is an equidigital number, since it uses as much as digits as its factorization.

56682587431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 55.

The spelling of 56682587431 in words is "fifty-six billion, six hundred eighty-two million, five hundred eighty-seven thousand, four hundred thirty-one".