520701478 has 12 divisors (see below), whose sum is σ = 858512340. Its totient is φ = 236682380.

The previous prime is 520701473. The next prime is 520701487. The reversal of 520701478 is 874107025.

It is a happy number.

It is a super-2 number, since 2×520701478² = 542260058382768968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520701473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1075588 + ... + 1076071.

It is an arithmetic number, because the mean of its divisors is an integer number (71542695).

Almost surely, 2^520701478 is an apocalyptic number.

520701478 is a deficient number, since it is larger than the sum of its proper divisors (337810862).

520701478 is a wasteful number, since it uses less digits than its factorization.

520701478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151683 (or 2151672 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 520701478 is about 22818.8842409089. The cubic root of 520701478 is about 804.5065854812.

The spelling of 520701478 in words is "five hundred twenty million, seven hundred one thousand, four hundred seventy-eight".