520390363 has 8 divisors (see below), whose sum is σ = 524587680. Its totient is φ = 516210240.

The previous prime is 520390337. The next prime is 520390369. The reversal of 520390363 is 363093025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520390363 - 2⁹ = 520389851 is a prime.

It is a super-2 number, since 2×520390363² = 541612259806543538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520390369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60306 + ... + 68392.

It is an arithmetic number, because the mean of its divisors is an integer number (65573460).

Almost surely, 2^520390363 is an apocalyptic number.

520390363 is a deficient number, since it is larger than the sum of its proper divisors (4197317).

520390363 is a wasteful number, since it uses less digits than its factorization.

520390363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8597.

The product of its (nonzero) digits is 14580, while the sum is 31.

The square root of 520390363 is about 22812.0661712174. The cubic root of 520390363 is about 804.3463247924.

The spelling of 520390363 in words is "five hundred twenty million, three hundred ninety thousand, three hundred sixty-three".