520428550 has 12 divisors (see below), whose sum is σ = 967997196. Its totient is φ = 208171400.

The previous prime is 520428533. The next prime is 520428551. The reversal of 520428550 is 55824025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520428551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5204236 + ... + 5204335.

It is an arithmetic number, because the mean of its divisors is an integer number (80666433).

Almost surely, 2^520428550 is an apocalyptic number.

520428550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520428550 is a deficient number, since it is larger than the sum of its proper divisors (447568646).

520428550 is a wasteful number, since it uses less digits than its factorization.

520428550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408583 (or 10408578 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

The square root of 520428550 is about 22812.9031471227. The cubic root of 520428550 is about 804.3659990114.

The spelling of 520428550 in words is "five hundred twenty million, four hundred twenty-eight thousand, five hundred fifty".