520755346 has 8 divisors (see below), whose sum is σ = 783799884. Its totient is φ = 259488720.

The previous prime is 520755343. The next prime is 520755377. The reversal of 520755346 is 643557025.

It can be written as a sum of positive squares in 2 ways, for example, as 424813321 + 95942025 = 20611^2 + 9795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×520755346² = 542372260775159432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520755343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443745 + ... + 444916.

Almost surely, 2^520755346 is an apocalyptic number.

520755346 is a deficient number, since it is larger than the sum of its proper divisors (263044538).

520755346 is a wasteful number, since it uses less digits than its factorization.

520755346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888956.

The product of its (nonzero) digits is 126000, while the sum is 37.

The square root of 520755346 is about 22820.0645485503. The cubic root of 520755346 is about 804.5343273309.

The spelling of 520755346 in words is "five hundred twenty million, seven hundred fifty-five thousand, three hundred forty-six".