520232845 has 24 divisors (see below), whose sum is σ = 690688152. Its totient is φ = 375872640.

The previous prime is 520232813. The next prime is 520232849. The reversal of 520232845 is 548232025.

520232845 = T₂₅₄ + T₂₅₅ + ... + T₁₄₆₃.

It can be written as a sum of positive squares in 4 ways, for example, as 163098441 + 357134404 = 12771^2 + 18898^2 .

It is not a de Polignac number, because 520232845 - 2⁵ = 520232813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520232849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92247 + ... + 97723.

It is an arithmetic number, because the mean of its divisors is an integer number (28778673).

Almost surely, 2^520232845 is an apocalyptic number.

520232845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

520232845 is a deficient number, since it is larger than the sum of its proper divisors (170455307).

520232845 is a wasteful number, since it uses less digits than its factorization.

520232845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661 (or 5650 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 520232845 is about 22808.6133949436. The cubic root of 520232845 is about 804.2651602032.

The spelling of 520232845 in words is "five hundred twenty million, two hundred thirty-two thousand, eight hundred forty-five".