520125769 has 8 divisors (see below), whose sum is σ = 529308000. Its totient is φ = 510955872.

The previous prime is 520125751. The next prime is 520125791. The reversal of 520125769 is 967521025.

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

It is a cyclic number.

It is not a de Polignac number, because 520125769 - 2⁹ = 520125257 is a prime.

It is a super-2 number, since 2×520125769² = 541061631155682722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520125799) 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, 136117 + ... + 139885.

It is an arithmetic number, because the mean of its divisors is an integer number (66163500).

Almost surely, 2^520125769 is an apocalyptic number.

520125769 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

520125769 is a deficient number, since it is larger than the sum of its proper divisors (9182231).

520125769 is a wasteful number, since it uses less digits than its factorization.

520125769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6167.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 520125769 is about 22806.2660030089. The cubic root of 520125769 is about 804.2099776017.

The spelling of 520125769 in words is "five hundred twenty million, one hundred twenty-five thousand, seven hundred sixty-nine".