5721545 has 16 divisors (see below), whose sum is σ = 7112448. Its totient is φ = 4416000.

The previous prime is 5721539. The next prime is 5721557. The reversal of 5721545 is 5451275.

It is not a de Polignac number, because 5721545 - 2⁶ = 5721481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22670 + ... + 22920.

It is an arithmetic number, because the mean of its divisors is an integer number (444528).

Almost surely, 2^5721545 is an apocalyptic number.

It is an amenable number.

5721545 is a deficient number, since it is larger than the sum of its proper divisors (1390903).

5721545 is a wasteful number, since it uses less digits than its factorization.

5721545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its digits is 7000, while the sum is 29.

The square root of 5721545 is about 2391.9751252887. The cubic root of 5721545 is about 178.8563811637.

The spelling of 5721545 in words is "five million, seven hundred twenty-one thousand, five hundred forty-five".