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7500061 is a prime number
BaseRepresentation
bin11100100111000100011101
3112010001011001
4130213010131
53410000221
6424430301
7120515032
oct34470435
915101131
107500061
1142629a8
122618391
131727a0a
14dd3389
159d2391
hex72711d

7500061 has 2 divisors, whose sum is σ = 7500062. Its totient is φ = 7500060.

The previous prime is 7500049. The next prime is 7500071. The reversal of 7500061 is 1600057.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4384836 + 3115225 = 2094^2 + 1765^2 .

It is a cyclic number.

It is not a de Polignac number, because 7500061 - 25 = 7500029 is a prime.

7500061 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7500071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3750030 + 3750031.

It is an arithmetic number, because the mean of its divisors is an integer number (3750031).

Almost surely, 27500061 is an apocalyptic number.

It is an amenable number.

7500061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7500061 is an equidigital number, since it uses as much as digits as its factorization.

7500061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 7500061 is about 2738.6239245285. The cubic root of 7500061 is about 195.7439127391.

The spelling of 7500061 in words is "seven million, five hundred thousand, sixty-one".