520903941 has 4 divisors (see below), whose sum is σ = 694538592. Its totient is φ = 347269292.

The previous prime is 520903921. The next prime is 520903951. The reversal of 520903941 is 149309025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520903941 - 2⁵ = 520903909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520903921) 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, 86817321 + ... + 86817326.

It is an arithmetic number, because the mean of its divisors is an integer number (173634648).

Almost surely, 2^520903941 is an apocalyptic number.

It is an amenable number.

520903941 is a deficient number, since it is larger than the sum of its proper divisors (173634651).

520903941 is a wasteful number, since it uses less digits than its factorization.

520903941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173634650.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 520903941 is about 22823.3201134278. The cubic root of 520903941 is about 804.6108433699.

The spelling of 520903941 in words is "five hundred twenty million, nine hundred three thousand, nine hundred forty-one".