60520013 has 8 divisors (see below), whose sum is σ = 62768280. Its totient is φ = 58282560.

The previous prime is 60520007. The next prime is 60520027. The reversal of 60520013 is 31002506.

It can be written as a sum of positive squares in 4 ways, for example, as 3396649 + 57123364 = 1843^2 + 7558^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 60520013 - 2⁸ = 60519757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60519973 and 60520000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60520003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9731 + ... + 14687.

It is an arithmetic number, because the mean of its divisors is an integer number (7846035).

Almost surely, 2^60520013 is an apocalyptic number.

It is an amenable number.

60520013 is a deficient number, since it is larger than the sum of its proper divisors (2248267).

60520013 is a wasteful number, since it uses less digits than its factorization.

60520013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 60520013 is about 7779.4609710442. The cubic root of 60520013 is about 392.6145024096.

Adding to 60520013 its reverse (31002506), we get a palindrome (91522519).

The spelling of 60520013 in words is "sixty million, five hundred twenty thousand, thirteen".