520753145 has 48 divisors (see below), whose sum is σ = 722796480. Its totient is φ = 359399040.

The previous prime is 520753141. The next prime is 520753183. The reversal of 520753145 is 541357025.

It is not a de Polignac number, because 520753145 - 2² = 520753141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520753141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1175294 + ... + 1175736.

It is an arithmetic number, because the mean of its divisors is an integer number (15058260).

Almost surely, 2^520753145 is an apocalyptic number.

520753145 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520753145 is a deficient number, since it is larger than the sum of its proper divisors (202043335).

520753145 is a wasteful number, since it uses less digits than its factorization.

520753145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 520753145 is about 22820.0163233947. The cubic root of 520753145 is about 804.5331938603.

The spelling of 520753145 in words is "five hundred twenty million, seven hundred fifty-three thousand, one hundred forty-five".