520525772 has 24 divisors (see below), whose sum is σ = 982719696. Its totient is φ = 239819328.

The previous prime is 520525763. The next prime is 520525777. The reversal of 520525772 is 277525025.

It is not an unprimeable number, because it can be changed into a prime (520525777) 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, 21998 + ... + 39050.

It is an arithmetic number, because the mean of its divisors is an integer number (40946654).

Almost surely, 2^520525772 is an apocalyptic number.

520525772 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

520525772 is a deficient number, since it is larger than the sum of its proper divisors (462193924).

520525772 is a wasteful number, since it uses less digits than its factorization.

520525772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17657 (or 17655 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 520525772 is about 22815.0339031087. The cubic root of 520525772 is about 804.4160841460.

The spelling of 520525772 in words is "five hundred twenty million, five hundred twenty-five thousand, seven hundred seventy-two".