520700225 has 24 divisors (see below), whose sum is σ = 719641440. Its totient is φ = 371416320.

The previous prime is 520700221. The next prime is 520700231. The reversal of 520700225 is 522007025.

It is not a de Polignac number, because 520700225 - 2² = 520700221 is a prime.

It is a super-2 number, since 2×520700225² = 542257448630101250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520700225.

It is not an unprimeable number, because it can be changed into a prime (520700221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24167 + ... + 40316.

It is an arithmetic number, because the mean of its divisors is an integer number (29985060).

Almost surely, 2^520700225 is an apocalyptic number.

It is an amenable number.

520700225 is a deficient number, since it is larger than the sum of its proper divisors (198941215).

520700225 is a wasteful number, since it uses less digits than its factorization.

520700225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64529 (or 64524 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 520700225 is about 22818.8567855622. The cubic root of 520700225 is about 804.5059401674.

The spelling of 520700225 in words is "five hundred twenty million, seven hundred thousand, two hundred twenty-five".