520672752 has 80 divisors (see below), whose sum is σ = 1504740000. Its totient is φ = 172371456.

The previous prime is 520672741. The next prime is 520672771. The reversal of 520672752 is 257276025.

520672752 is a `hidden beast` number, since 520 + 67 + 2 + 75 + 2 = 666.

It is a super-2 number, since 2×520672752² = 542200229350507008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60324 + ... + 68412.

It is an arithmetic number, because the mean of its divisors is an integer number (18809250).

Almost surely, 2^520672752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520672752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752370000).

520672752 is an abundant number, since it is smaller than the sum of its proper divisors (984067248).

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

520672752 is a wasteful number, since it uses less digits than its factorization.

520672752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255 (or 8243 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 520672752 is about 22818.2547974204. The cubic root of 520672752 is about 804.4917908998.

The spelling of 520672752 in words is "five hundred twenty million, six hundred seventy-two thousand, seven hundred fifty-two".