521414411 has 4 divisors (see below), whose sum is σ = 595902192. Its totient is φ = 446926632.

The previous prime is 521414407. The next prime is 521414423. The reversal of 521414411 is 114414125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 521414411 - 2² = 521414407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (521414441) 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, 37243880 + ... + 37243893.

It is an arithmetic number, because the mean of its divisors is an integer number (148975548).

Almost surely, 2^521414411 is an apocalyptic number.

521414411 is a deficient number, since it is larger than the sum of its proper divisors (74487781).

521414411 is an equidigital number, since it uses as much as digits as its factorization.

521414411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74487780.

The product of its digits is 640, while the sum is 23.

The square root of 521414411 is about 22834.5004543563. The cubic root of 521414411 is about 804.8735889361.

Adding to 521414411 its reverse (114414125), we get a palindrome (635828536).

The spelling of 521414411 in words is "five hundred twenty-one million, four hundred fourteen thousand, four hundred eleven".