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5611391 is a prime number
BaseRepresentation
bin10101011001111101111111
3101120002101022
4111121331333
52414031031
6320134355
765460512
oct25317577
911502338
105611391
113192a15
121a673bb
131216166
14a60d79
1575c97b
hex559f7f

5611391 has 2 divisors, whose sum is σ = 5611392. Its totient is φ = 5611390.

The previous prime is 5611369. The next prime is 5611399. The reversal of 5611391 is 1931165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5611391 - 218 = 5349247 is a prime.

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 5611391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5611399) 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 as a sum of consecutive naturals, namely, 2805695 + 2805696.

It is an arithmetic number, because the mean of its divisors is an integer number (2805696).

Almost surely, 25611391 is an apocalyptic number.

5611391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5611391 is an equidigital number, since it uses as much as digits as its factorization.

5611391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 26.

The square root of 5611391 is about 2368.8374785958. The cubic root of 5611391 is about 177.7011249258.

The spelling of 5611391 in words is "five million, six hundred eleven thousand, three hundred ninety-one".