521322417 has 36 divisors (see below), whose sum is σ = 955605456. Its totient is φ = 270814320.

The previous prime is 521322353. The next prime is 521322481. The reversal of 521322417 is 714223125.

It is an interprime number because it is at equal distance from previous prime (521322353) and next prime (521322481).

It is not a de Polignac number, because 521322417 - 2⁶ = 521322353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (521322617) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48883 + ... + 58584.

It is an arithmetic number, because the mean of its divisors is an integer number (26544596).

Almost surely, 2^521322417 is an apocalyptic number.

It is an amenable number.

521322417 is a deficient number, since it is larger than the sum of its proper divisors (434283039).

521322417 is a wasteful number, since it uses less digits than its factorization.

521322417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107498 (or 107488 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 521322417 is about 22832.4860013096. The cubic root of 521322417 is about 804.8262510961.

The spelling of 521322417 in words is "five hundred twenty-one million, three hundred twenty-two thousand, four hundred seventeen".