5721558 has 8 divisors (see below), whose sum is σ = 11443128. Its totient is φ = 1907184.

The previous prime is 5721557. The next prime is 5721563. The reversal of 5721558 is 8551275.

It is a happy number.

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

5721558 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 476791 + ... + 476802.

It is an arithmetic number, because the mean of its divisors is an integer number (1430391).

Almost surely, 2^5721558 is an apocalyptic number.

5721558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5721558 is a wasteful number, since it uses less digits than its factorization.

5721558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953598.

The product of its digits is 14000, while the sum is 33.

The square root of 5721558 is about 2391.9778427067. The cubic root of 5721558 is about 178.8565166243.

The spelling of 5721558 in words is "five million, seven hundred twenty-one thousand, five hundred fifty-eight".