520000070 has 8 divisors (see below), whose sum is σ = 936000144. Its totient is φ = 208000024.

The previous prime is 520000069. The next prime is 520000079. The reversal of 520000070 is 70000025.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520000079) 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, 25999994 + ... + 26000013.

It is an arithmetic number, because the mean of its divisors is an integer number (117000018).

Almost surely, 2^520000070 is an apocalyptic number.

520000070 is a deficient number, since it is larger than the sum of its proper divisors (416000074).

520000070 is a wasteful number, since it uses less digits than its factorization.

520000070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52000014.

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 520000070 is about 22803.5100368342. The cubic root of 520000070 is about 804.1451878012.

Adding to 520000070 its reverse (70000025), we get a palindrome (590000095).

The spelling of 520000070 in words is "five hundred twenty million, seventy", and thus it is an aban number.