6520624061 has 4 divisors (see below), whose sum is σ = 7452141792. Its totient is φ = 5589106332.

The previous prime is 6520624037. The next prime is 6520624067. The reversal of 6520624061 is 1604260256.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6520624061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520624067) 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 in 3 ways as a sum of consecutive naturals, for example, 465758855 + ... + 465758868.

It is an arithmetic number, because the mean of its divisors is an integer number (1863035448).

Almost surely, 2^6520624061 is an apocalyptic number.

It is an amenable number.

6520624061 is a deficient number, since it is larger than the sum of its proper divisors (931517731).

6520624061 is an equidigital number, since it uses as much as digits as its factorization.

6520624061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931517730.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 6520624061 is about 80750.3811817629. The cubic root of 6520624061 is about 1868.2273287686.

The spelling of 6520624061 in words is "six billion, five hundred twenty million, six hundred twenty-four thousand, sixty-one".