60520813 has 2 divisors, whose sum is σ = 60520814. Its totient is φ = 60520812.

The previous prime is 60520787. The next prime is 60520841. The reversal of 60520813 is 31802506.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47582404 + 12938409 = 6898^2 + 3597^2 .

It is a cyclic number.

It is not a de Polignac number, because 60520813 - 2⁵ = 60520781 is a prime.

It is a super-3 number, since 3×60520813³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60520853) 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, 30260406 + 30260407.

It is an arithmetic number, because the mean of its divisors is an integer number (30260407).

Almost surely, 2^60520813 is an apocalyptic number.

It is an amenable number.

60520813 is a deficient number, since it is larger than the sum of its proper divisors (1).

60520813 is an equidigital number, since it uses as much as digits as its factorization.

60520813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 60520813 is about 7779.5123883184. The cubic root of 60520813 is about 392.6162323620.

The spelling of 60520813 in words is "sixty million, five hundred twenty thousand, eight hundred thirteen".