5721506 has 16 divisors (see below), whose sum is σ = 9844800. Its totient is φ = 2442960.

The previous prime is 5721493. The next prime is 5721517. The reversal of 5721506 is 6051275.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301 + ... + 5471.

It is an arithmetic number, because the mean of its divisors is an integer number (615300).

Almost surely, 2^5721506 is an apocalyptic number.

5721506 is a deficient number, since it is larger than the sum of its proper divisors (4123294).

5721506 is a wasteful number, since it uses less digits than its factorization.

5721506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 5721506 is about 2391.9669730161. The cubic root of 5721506 is about 178.8559747808.

The spelling of 5721506 in words is "five million, seven hundred twenty-one thousand, five hundred six".