520363700 has 18 divisors (see below), whose sum is σ = 1129189446. Its totient is φ = 208145440.

The previous prime is 520363639. The next prime is 520363709. The reversal of 520363700 is 7363025.

It can be written as a sum of positive squares in 3 ways, for example, as 181656484 + 338707216 = 13478^2 + 18404^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 520363700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520363709) 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, 2601719 + ... + 2601918.

It is an arithmetic number, because the mean of its divisors is an integer number (62732747).

Almost surely, 2^520363700 is an apocalyptic number.

520363700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

520363700 is an abundant number, since it is smaller than the sum of its proper divisors (608825746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520363700 is a wasteful number, since it uses less digits than its factorization.

520363700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203651 (or 5203644 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 520363700 is about 22811.4817580972. The cubic root of 520363700 is about 804.3325872511.

The spelling of 520363700 in words is "five hundred twenty million, three hundred sixty-three thousand, seven hundred".