7020002581 has 2 divisors, whose sum is σ = 7020002582. Its totient is φ = 7020002580.

The previous prime is 7020002573. The next prime is 7020002603. The reversal of 7020002581 is 1852000207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5054499025 + 1965503556 = 71095^2 + 44334^2 .

It is an emirp because it is prime and its reverse (1852000207) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7020002581 - 2³ = 7020002573 is a prime.

It is a super-2 number, since 2×7020002581² = 98560872474493323122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7020002881) 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, 3510001290 + 3510001291.

It is an arithmetic number, because the mean of its divisors is an integer number (3510001291).

Almost surely, 2^7020002581 is an apocalyptic number.

It is an amenable number.

7020002581 is a deficient number, since it is larger than the sum of its proper divisors (1).

7020002581 is an equidigital number, since it uses as much as digits as its factorization.

7020002581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 7020002581 is about 83785.4556650496. The cubic root of 7020002581 is about 1914.7515243195.

Adding to 7020002581 its reverse (1852000207), we get a palindrome (8872002788).

The spelling of 7020002581 in words is "seven billion, twenty million, two thousand, five hundred eighty-one".