6520070 has 16 divisors (see below), whose sum is σ = 12141360. Its totient is φ = 2517984.

The previous prime is 6520069. The next prime is 6520079. The reversal of 6520070 is 700256.

It is a super-2 number, since 2×6520070² = 85022625609800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6520079) 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, 10952 + ... + 11531.

It is an arithmetic number, because the mean of its divisors is an integer number (758835).

Almost surely, 2^6520070 is an apocalyptic number.

6520070 is a deficient number, since it is larger than the sum of its proper divisors (5621290).

6520070 is a wasteful number, since it uses less digits than its factorization.

6520070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22519.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 6520070 is about 2553.4427739818. The cubic root of 6520070 is about 186.8174412503.

The spelling of 6520070 in words is "six million, five hundred twenty thousand, seventy".