521425411 has 8 divisors (see below), whose sum is σ = 594566784. Its totient is φ = 453002880.

The previous prime is 521425403. The next prime is 521425441. The reversal of 521425411 is 114524125.

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 521425411 - 2³ = 521425403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521425441) 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, 1179475 + ... + 1179916.

It is an arithmetic number, because the mean of its divisors is an integer number (74320848).

Almost surely, 2^521425411 is an apocalyptic number.

521425411 is a deficient number, since it is larger than the sum of its proper divisors (73141373).

521425411 is a wasteful number, since it uses less digits than its factorization.

521425411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359421.

The product of its digits is 1600, while the sum is 25.

The square root of 521425411 is about 22834.7413166867. The cubic root of 521425411 is about 804.8792488917.

Adding to 521425411 its reverse (114524125), we get a palindrome (635949536).

It can be divided in two parts, 5214 and 25411, that added together give a square (30625 = 175²).

The spelling of 521425411 in words is "five hundred twenty-one million, four hundred twenty-five thousand, four hundred eleven".