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1002553 is a prime number
BaseRepresentation
bin11110100110000111001
31212221020121
43310300321
5224040203
633253241
711343616
oct3646071
91787217
101002553
11625262
12404221
13291436
141c150d
1514c0bd
hexf4c39

1002553 has 2 divisors, whose sum is σ = 1002554. Its totient is φ = 1002552.

The previous prime is 1002527. The next prime is 1002569. The reversal of 1002553 is 3552001.

It is an a-pointer prime, because the next prime (1002569) can be obtained adding 1002553 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 685584 + 316969 = 828^2 + 563^2 .

It is an emirp because it is prime and its reverse (3552001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1002553 is a prime.

It is a super-2 number, since 2×10025532 = 2010225035618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1002503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501276 + 501277.

It is an arithmetic number, because the mean of its divisors is an integer number (501277).

21002553 is an apocalyptic number.

It is an amenable number.

1002553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002553 is an equidigital number, since it uses as much as digits as its factorization.

1002553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1002553 is about 1001.2756863122. The cubic root of 1002553 is about 100.0850276824.

Adding to 1002553 its reverse (3552001), we get a palindrome (4554554).

The spelling of 1002553 in words is "one million, two thousand, five hundred fifty-three".