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1255567 is a prime number
BaseRepresentation
bin100110010100010001111
32100210022111
410302202033
5310134232
642524451
713446355
oct4624217
92323274
101255567
11788365
12506727
1334c651
142497d5
1519c047
hex13288f

1255567 has 2 divisors, whose sum is σ = 1255568. Its totient is φ = 1255566.

The previous prime is 1255559. The next prime is 1255591. The reversal of 1255567 is 7655521.

It is a weak prime.

It is an emirp because it is prime and its reverse (7655521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255567 - 23 = 1255559 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627783 + 627784.

It is an arithmetic number, because the mean of its divisors is an integer number (627784).

21255567 is an apocalyptic number.

1255567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255567 is an equidigital number, since it uses as much as digits as its factorization.

1255567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10500, while the sum is 31.

The square root of 1255567 is about 1120.5208610285. The cubic root of 1255567 is about 107.8814141914.

The spelling of 1255567 in words is "one million, two hundred fifty-five thousand, five hundred sixty-seven".