60818581 has 2 divisors, whose sum is σ = 60818582. Its totient is φ = 60818580.

The previous prime is 60818531. The next prime is 60818599. The reversal of 60818581 is 18581806.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44488900 + 16329681 = 6670^2 + 4041^2 .

It is a cyclic number.

It is not a de Polignac number, because 60818581 - 2¹⁷ = 60687509 is a prime.

It is a super-2 number, since 2×60818581² = 7397799589707122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 60818581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60818531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30409290 + 30409291.

It is an arithmetic number, because the mean of its divisors is an integer number (30409291).

Almost surely, 2^60818581 is an apocalyptic number.

It is an amenable number.

60818581 is a deficient number, since it is larger than the sum of its proper divisors (1).

60818581 is an equidigital number, since it uses as much as digits as its factorization.

60818581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 37.

The square root of 60818581 is about 7798.6268663144. The cubic root of 60818581 is about 393.2590819495.

The spelling of 60818581 in words is "sixty million, eight hundred eighteen thousand, five hundred eighty-one".