5245721 has 8 divisors (see below), whose sum is σ = 5691840. Its totient is φ = 4805712.

The previous prime is 5245711. The next prime is 5245733. The reversal of 5245721 is 1275425.

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 5245721 - 2⁶ = 5245657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5245711) 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, 356 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (711480).

Almost surely, 2^5245721 is an apocalyptic number.

It is an amenable number.

5245721 is a deficient number, since it is larger than the sum of its proper divisors (446119).

5245721 is a wasteful number, since it uses less digits than its factorization.

5245721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 2800, while the sum is 26.

The square root of 5245721 is about 2290.3539027845. The cubic root of 5245721 is about 173.7541006226.

The spelling of 5245721 in words is "five million, two hundred forty-five thousand, seven hundred twenty-one".