520763700 has 144 divisors (see below), whose sum is σ = 1595897856. Its totient is φ = 130838400.

The previous prime is 520763689. The next prime is 520763717. The reversal of 520763700 is 7367025.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 489369 + ... + 490431.

It is an arithmetic number, because the mean of its divisors is an integer number (11082624).

Almost surely, 2^520763700 is an apocalyptic number.

520763700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520763700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797948928).

520763700 is an abundant number, since it is smaller than the sum of its proper divisors (1075134156).

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

520763700 is a wasteful number, since it uses less digits than its factorization.

520763700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 520763700 is about 22820.2475884904. The cubic root of 520763700 is about 804.5386294431.

The spelling of 520763700 in words is "five hundred twenty million, seven hundred sixty-three thousand, seven hundred".