5721549 has 16 divisors (see below), whose sum is σ = 8049024. Its totient is φ = 3608000.

The previous prime is 5721539. The next prime is 5721557. The reversal of 5721549 is 9451275.

It is a cyclic number.

It is not a de Polignac number, because 5721549 - 2⁵ = 5721517 is a prime.

It is a super-2 number, since 2×5721549² = 65472245918802, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6559 + ... + 7379.

It is an arithmetic number, because the mean of its divisors is an integer number (503064).

Almost surely, 2^5721549 is an apocalyptic number.

It is an amenable number.

5721549 is a deficient number, since it is larger than the sum of its proper divisors (2327475).

5721549 is a wasteful number, since it uses less digits than its factorization.

5721549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its digits is 12600, while the sum is 33.

The square root of 5721549 is about 2391.9759614177. The cubic root of 5721549 is about 178.8564228439.

The spelling of 5721549 in words is "five million, seven hundred twenty-one thousand, five hundred forty-nine".