5245521 has 8 divisors (see below), whose sum is σ = 7082880. Its totient is φ = 3452592.

The previous prime is 5245511. The next prime is 5245523. The reversal of 5245521 is 1255425.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5245521 - 2⁵ = 5245489 is a prime.

It is a super-2 number, since 2×5245521² = 55030981122882, which contains 22 as substring.

It is a Curzon number.

5245521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5245491 and 5245500.

It is not an unprimeable number, because it can be changed into a prime (5245523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10830 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (885360).

Almost surely, 2^5245521 is an apocalyptic number.

It is an amenable number.

5245521 is a deficient number, since it is larger than the sum of its proper divisors (1837359).

5245521 is a wasteful number, since it uses less digits than its factorization.

5245521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22215.

The product of its digits is 2000, while the sum is 24.

The square root of 5245521 is about 2290.3102409936. The cubic root of 5245521 is about 173.7518923935.

The spelling of 5245521 in words is "five million, two hundred forty-five thousand, five hundred twenty-one".