5705521 has 4 divisors (see below), whose sum is σ = 5710912. Its totient is φ = 5700132.

The previous prime is 5705467. The next prime is 5705527. The reversal of 5705521 is 1255075.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5705521 is a prime.

It is an Ulam number.

It is a Duffinian number.

5705521 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5705527) 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, 525 + ... + 3418.

It is an arithmetic number, because the mean of its divisors is an integer number (1427728).

Almost surely, 2^5705521 is an apocalyptic number.

It is an amenable number.

5705521 is a deficient number, since it is larger than the sum of its proper divisors (5391).

5705521 is a wasteful number, since it uses less digits than its factorization.

5705521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5390.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 5705521 is about 2388.6232436280. The cubic root of 5705521 is about 178.6892541398.

It can be divided in two parts, 5705 and 521, that added together give a palindrome (6226).

The spelling of 5705521 in words is "five million, seven hundred five thousand, five hundred twenty-one".