520630433225 has 24 divisors (see below), whose sum is σ = 738099835968. Its totient is φ = 356862369600.

The previous prime is 520630433221. The next prime is 520630433263. The reversal of 520630433225 is 522334036025.

It is not a de Polignac number, because 520630433225 - 2² = 520630433221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520630433221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144794 + ... + 1030643.

It is an arithmetic number, because the mean of its divisors is an integer number (30754159832).

Almost surely, 2^520630433225 is an apocalyptic number.

It is an amenable number.

520630433225 is a deficient number, since it is larger than the sum of its proper divisors (217469402743).

520630433225 is a wasteful number, since it uses less digits than its factorization.

520630433225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177985 (or 1177980 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

The spelling of 520630433225 in words is "five hundred twenty billion, six hundred thirty million, four hundred thirty-three thousand, two hundred twenty-five".