520221430025 has 24 divisors (see below), whose sum is σ = 703831987584. Its totient is φ = 378281422400.

The previous prime is 520221430019. The next prime is 520221430049. The reversal of 520221430025 is 520034122025.

It is not a de Polignac number, because 520221430025 - 2⁴ = 520221430009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520221429976 and 520221430003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1578479 + ... + 1879371.

It is an arithmetic number, because the mean of its divisors is an integer number (29326332816).

Almost surely, 2^520221430025 is an apocalyptic number.

520221430025 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520221430025 is a deficient number, since it is larger than the sum of its proper divisors (183610557559).

520221430025 is a wasteful number, since it uses less digits than its factorization.

520221430025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307201 (or 307196 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 520221430025 in words is "five hundred twenty billion, two hundred twenty-one million, four hundred thirty thousand, twenty-five".