520251258 has 8 divisors (see below), whose sum is σ = 1040502528. Its totient is φ = 173417084.

The previous prime is 520251253. The next prime is 520251301. The reversal of 520251258 is 852152025.

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

520251258 is an admirable number.

It is a super-2 number, since 2×520251258² = 541322742901165128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520251253) 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, 43354266 + ... + 43354277.

It is an arithmetic number, because the mean of its divisors is an integer number (130062816).

Almost surely, 2^520251258 is an apocalyptic number.

520251258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

520251258 is a wasteful number, since it uses less digits than its factorization.

520251258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86708548.

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 520251258 is about 22809.0170327439. The cubic root of 520251258 is about 804.2746487491.

The spelling of 520251258 in words is "five hundred twenty million, two hundred fifty-one thousand, two hundred fifty-eight".