520415070 has 64 divisors (see below), whose sum is σ = 1429401600. Its totient is φ = 118787328.

The previous prime is 520415069. The next prime is 520415123. The reversal of 520415070 is 70514025.

It is a self number, because there is not a number n which added to its sum of digits gives 520415070.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 215731 + ... + 218129.

It is an arithmetic number, because the mean of its divisors is an integer number (22334400).

Almost surely, 2^520415070 is an apocalyptic number.

520415070 is an abundant number, since it is smaller than the sum of its proper divisors (908986530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520415070 is a wasteful number, since it uses less digits than its factorization.

520415070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 520415070 is about 22812.6076983759. The cubic root of 520415070 is about 804.3590541277.

Adding to 520415070 its reverse (70514025), we get a palindrome (590929095).

The spelling of 520415070 in words is "five hundred twenty million, four hundred fifteen thousand, seventy".