520342556 has 12 divisors (see below), whose sum is σ = 912392040. Its totient is φ = 259659120.

The previous prime is 520342549. The next prime is 520342609. The reversal of 520342556 is 655243025.

It is a super-2 number, since 2×520342556² = 541512751169226272, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125750 + ... + 129821.

It is an arithmetic number, because the mean of its divisors is an integer number (76032670).

Almost surely, 2^520342556 is an apocalyptic number.

It is an amenable number.

520342556 is a deficient number, since it is larger than the sum of its proper divisors (392049484).

520342556 is a wasteful number, since it uses less digits than its factorization.

520342556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256084 (or 256082 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 520342556 is about 22811.0183025660. The cubic root of 520342556 is about 804.3216929231.

The spelling of 520342556 in words is "five hundred twenty million, three hundred forty-two thousand, five hundred fifty-six".