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50700581 is a prime number
BaseRepresentation
bin1100000101101…
…0000100100101
310112101212010022
43001122010211
5100434404311
65010404525
71153643051
oct301320445
9115355108
1050700581
112668a108
1214b90745
13a672259
146a3ac61
1546b75db
hex305a125

50700581 has 2 divisors, whose sum is σ = 50700582. Its totient is φ = 50700580.

The previous prime is 50700563. The next prime is 50700583. The reversal of 50700581 is 18500705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35224225 + 15476356 = 5935^2 + 3934^2 .

It is a cyclic number.

It is not a de Polignac number, because 50700581 - 210 = 50699557 is a prime.

It is a super-2 number, since 2×507005812 = 5141097827475122, which contains 22 as substring.

Together with 50700583, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50700581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50700583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25350290 + 25350291.

It is an arithmetic number, because the mean of its divisors is an integer number (25350291).

Almost surely, 250700581 is an apocalyptic number.

It is an amenable number.

50700581 is a deficient number, since it is larger than the sum of its proper divisors (1).

50700581 is an equidigital number, since it uses as much as digits as its factorization.

50700581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 50700581 is about 7120.4340457587. The cubic root of 50700581 is about 370.1158171642.

The spelling of 50700581 in words is "fifty million, seven hundred thousand, five hundred eighty-one".